Lots of very good solutions are popping up!

I'm going to blame it on the weather as well. You get an outfit all picked out, then the weather is wrong for it, and you have to reassess, and there's no time for that.... sigh...

This year is a bit different for me, as I'm trying to do this 30x30(x2), in order to evaluate my "deep winter" clothes. Except... we're not having deep winter. It's 9 degrees, and we have NO SNOW! So I don't want to be wearing my cozy, heavy clothes. I can wear wide leg pants, and non-winter boots... so I don't know what to do! The outfits I have planned seem off because I have a rare winter opportunity to wear non-winter clothes. I could wear white jeans!! But they aren't part of my capsule....
First world problem.

LOL at Suz's snow boots comment and a reminder to plan outfits from the bottom up. I've pulled out the "Cold Spring" wardrobe items, hoping to breathe some new life into outfits, but some of those pieces no longer appeal. Yesterday I wore a camel skirt and pink and felt terribly frumpy. The lighter colors were supposed to be fresh compared with black and burgundy. The question is whether to try again with these pieces or donate.

I agree the time of year and just one's overall mood can create NTW even when there is plenty. Just the other day I was agonizing over what to wear with Adirondack style boots because I didn't want my feet to be cold and I needed to get out and do some shopping. I ended up going the full "Portland" route wearing cuffed jeans, flannel plaid over a tee and a puffer vest - I was not the most fashionable but at least it was intentional.

I have this problem sometimes, but I think for a different reason than others have mentioned. My apartment is tiny, so there's no way for me to store everything so I can see it. Therefore, I can't see what I have. Using Finds here has helped, along with keeping notes of outfits I want to wear in the near future, and track which things are worn and not worn.