I like Brooklyn and Suntiger's methods. Why use a bag if you don't have to? And if you're going to use one, why not put everything away when you're done with it? My V. Nash bag is about the size of a clutch and the strap comes off, so I can toss it in a bigger bag. I keep it pretty lean, by necessity--there isn't room for much more than keys, a few cards, little shopping bag, lipstick (I wear it because I like it, even if no one can see it under the mask), mask, nail clippers/file/buffer (to use on trains), phone (outside pocket), pen, comb, and hair tie. I toss receipts in with the groceries, and they periodically need to be cleaned off the kitchen counter (my son typically does it; he will come home to visit and find me buried under a pile of receipts). Those things generally don't have any home except for the purse. Everything else is taken out and generally gets put away when I come home.

Pre-YLF, I would use only one (Black) bag. Now I have multiple (admittedly) inexpensive bags. I first examined what I carried in my bags, what I thought I needed, and what I actually used. This really pared down what I carry, and I think I need to do this again.

First off, I noticed that sometimes I had multiple pens in my bag and sometimes none at all. I now keep a pen in each bag which prevents bag migration.

Next, I discovered that everything I use fits in a small pouch that I can transfer from one bag to another. I never used the comb I carried and can get by with a few tissues rather than a full package. Lipgloss plus lippie is now just the lippie I wear 80% of the time. I replaced the tiny pot of Vaseline/Aquaphor with an equally tiny pot of Cerave cream, but I am starting to miss the Vaseline so I may add it back in since there’s room.

My wallet is tiny and I try to keep it lean.

I keep my little pouch, wallet, and keys (which now only include my house key and car key) on a tiny shelf along with a mask reminder since I am likely to wear a different mask. So I guess I semi Konmari.

I may add additional items as needed such as my reading glasses and a book. And of course my phone always goes in.

Oh yeah, reading glasses! I knew I'd forget something(s). I have a pair of reading glasses that I keep in my little purse. Only problem is that I often have a pair on my head when I go out.

I have been doing this for ages and it is very helpful. I do try to outfit each bag with a packet of tissues, a nylon shopping bag that folds or rolls up small, a comb and a mask. I add my billfold, sunglasses, glucose tablets and a bag with car keys and house keys. Those are my basics. My phone and glucose meter are in a second bag that I always wear.
I am working on a pencil and tiny notebook for every bag too. At least they are clean each day. Used tissues and masks get thrown out each day, or put in a mesh bag to be washed.
Receipts get put in a basket or are shredded. Glucose tablets get replaced from a large bottle and notes get filed in the appropriate place to find the information again or tossed if not important. This system helps me and takes seconds.

I have five day bags that I swap between, but really only three for work. I don't swap every day but as I feel like. When I swap over I do a clear out of any makeup, receipts etc.. I am not very organised about these small things.

I have made a change to my routine recently though and moved all my makeup to a dresser in my hall. There is a big mirror there, good natural light, and more room than in the tiny ensuite. It works well for me and I have one drawer with makeup and perfume, and one with sunglasses and masks. Sunscreen and hand sanitiser are on top to apply as needed.

I think bag swapping is not at all necessary and for years I had one bag for day at a time. YLF has made me appreciated bags more and I do like having a small number of options.

I don't either. I read the book, did some decluttering, got stopped in my tracks eventually by a sentimental hubby who wasn't prepared to let go of ANYTHING. To avoid fighting over some Japanese guru method that's supposed to bring you more peace and joy I let it go ;). I did like her philosophies though and still use those to keep on top of my own possessions.
But for the bag. NO. I have a little bag organizer containing my essentials, meaning that if I leave the house without any of those I will be sorry. This gets transferred when I change bags. I do keep my bag close at hand in my own house because it contains said essentials. Apparently some people find this weird :D. But I rarely loose my phone or lip balm this way so...

I try to avoid carrying a bag. Now that winter is here there are more pockets available with jackets or coats it's even easier. My wallet and phone are all I need. In the before times I'd also carry lipstick but that's become obsolete with a face mask. As for Marie Kondo... it revolutionized my sock and underwear drawers....but not much else. But I keep her principles in mind and I"m likely more organized than before in subtle ways. Oh, we did dump all the kitchen drawers out on the counter and put back just the items we really used. Amazing how many duplicates, even triplicates we found.

It makes complete sense to me! I don't carry a lot in my bag, and frequently swap out my bags, so I do this anyway.

I would NEVER do this. My keys and wallet always live in my purse, whichever one I used last. It’s literally the only way I’ll remember where they are! Taking everything out every night and, perhaps more to the point, putting it back in the morning (when I’m often running around in a frantic hurry or still half asleep) is just a recipe for disaster fo me. And also seems like a lot of unnecessary effort given that I tend to use the same bag for weeks at a time.

Diana, that’s exactly why I reset my purse right when I get home. It is my kit for when I go out into the world. I keep it stocked so I can grab it and run out the door. It took my son a while to figure this out—sometimes he just laughed at me, but other times he would use something from it, not put it back, and then there was trouble next time I was out & didn’t have keys or bank card or whatever.

FWIW, I showed the 3 men-folk how to manage clothes the Konmari way, and they are converts. Drawers are much more manageable. DH Likes how he can see all his shirts, unlike when they were stacked one on top of the other.

I go through my bag every two or three days, otherwise it can easily become overrun with receipts, filled with random change, etc. (at least during normal times when I was able to go places). And it helps avoid unfortunate accidents from damaging a bag (a candy you didn't realize you still had comes out of its wrapper - if that sits too long, it will stick to the lining and potentially ruin it; a lip balm coming open, etc.).

UPDATE: I must say that I have not attempted the "empty the bag every night" method yet.

What I have done is cleared out all the open shelves in my dressing room and begun to move my bags upstairs again. Even if I don't change bags, at least I will appreciate their beauty.