Such an interesting thread. I read it a few hours ago and am returning just to comment.
My "food approaches" below are more what I would like to do rather than what actually happens in my house, because right now shopping and most cooking is done by DH and he has his own methods!

Similarities
I shop for both with a list and am pretty difficult to persuade to buy anything off the list
I am an under buyer. With food especially I will scrimp and eke just to make it through without having to go back to the shops. I currently really need more knickers and have to go into my sort of reserve collection ( girls sizes and thus a bit snug, which I hate) and have I yet got around to buying them? No!

Until I went GF when diagnose with celiac disease, I was happy with one of 2 breakfast options everyday. I don't mind having my favourite meals pretty often. No problems with leftovers whatsoever
I don't mind repeating outifts and have a smallish wardrobe

I love reading some recipes books especially if they have lots of text -Nigella Lawsons How to Eat is a great favourite.
I read YLF, Inside Out Style and Mo's new blog only when it comes to fashion blogs so - a certain, but not excessive amount of reading on each

I don't forget what is in my pantry nor what clothes I own

I can get overambitouus with cooking and exhausted by the end of the washing up. Shopping is also exhausting!

Differences
I rarely buy the more expensive version of food (store brands are fine for me and I never get organic). I do however buy relatively expensive orthotic shoes, boots and some midrange clothing items.

I like trying out new recipes, but try out only a tiny percentage of the fashionable looks

Suz, what an interesting question - I think my food philosophy and clothing philosophy also have some similarities:
1. I don't like fancy food and I don't like fancy clothes - I'd much prefer a really nicely-done hamburger to something gourmet with all sort of sauce and garnish.
2. I try to buy only what we'll use and abhor throwing things out ... same with clothes (although I'm not as good at it with clothes).
3. I am not overly adventurous with food, nor am I with clothes (although moreso with good than clothes).
4. I don't like trendy diets and I generally don't like trendy clothes. Occasionally I will try one or the other and quickly remember they are not for me.
5. I like following recipes and I like following style formulas. I'd rather have one or two of these that I get really good at than playing around with many. Once I am good, I might add and change something, but only rarely and generally only one thing - not an overhaul.
6. I hate grocery shopping and I hate clothing shopping - unless I have a specific list and know just where I am going.
Come to think of it, I could say all the same things about my decor style too!

I am always trying new recipes. I am always trying new outfit combinations. In the past, I hardly ever repeated meals (DH has commented on this. "Could you please make this again?" "Why do I never eat the same meal twice?"). As I said earlier, last school year I never repeated outfits.

I have begun repeating meals. I have begun repeating outfits. Started doing both concurrently (this school year).

One of my favorite fruits is the good 'ol apple, and the other, my very favorite, is Bing cherries. My favorite color is - you guessed it - red, specifically dark red.

I am both adventurous and trendy with food. I'll try anything. Sushi? You betcha. The latest fusion restaurant? Make a reservation. However on the flip side, I'd like to think I'm adventurous and trendy with outfits and I know that my friends/family/coworkers think I am, but amongst all the fabness here on YLF I don't see myself as particularly adventurous or trendy.

I am adventurous in life too. A bona fide adrenaline junkie!

Karie, you are definitely adventurous. And wow, that is so amazing that you started repeating outfits and meals at the same time!

TG, you sound very consistent! So you bear out Rachy's comment.

Anne, very interesting -- your need for orthotic shoes might be likened to the need for gluten free food -- but not so much if you are cooking from whole ingredients. It would be more the case if you were buying packaged stuff. (That tends to be expensive.)

It seems this topic has given us all some "food for thought." (Terrible, I know. Forgive me.)

And, on that note, I need to fix some supper!

Yep...classic binger (purger) with regard to acquisition. I love to eat and it physically hurts to stop eating something yummy. Then I get on the bandwagon purging all the unhealthy foods from the cupboards and fridge then we're off again. Similarities also extend to how I also use clothing...I have cravings, wear the same things over and over, then I need a new menu.

I'm sure everyone has a core set of behavioral responses with dissimilarities in the fringes, like lisap's desire for clothing luxury but not luxurious food.