Good advice!
Once, I was trying on clothes at home and asking my husband if they were flattering. He was extremely puzzled,
"Why would you buy anything that wasn't?"
Hahahaha, the male mind! However, I have often thought of that remark when shopping for clothes and trying to be as critical as possible before buying. Uhm, yes, I have bought unflattering clothes before. Time to toss them.

When I've held on to certain pieces of clothing for a few years, because they were expensive or I so loved them, wearing them again a few years later made me realize I had changed and they were not flattering anymore.

I keep (some) clothes that no longer fit, especially jeans. Depending on the seaon, and my level of physical activity (I am a farmer) I can go through two or three sizes in the course of a year. At one extreme, in mid-summer when we are working very long, physically taxing days, in the heat, I can shrink down to a 4/6/8 (depends on brand). In the winter when we rest and are much less active it's more likely to be 10/12/even smallish 14s (again depending).

It's also a comfort to know I can just shrug out of one size and into the other, without having to buy anything new. I hate clothes shopping, even the attenuated variety of ordering from the LL Bean catalogue.

L.