ever since I got pregnant enough to require special clothes, I've had somewhat of a minimal wardrobe... maternity clothes, I got away with 2 pairs of corduroys, a convertible capri/pant, a pair of jeans, about 5 tops, and 1 dress.
In normal clothes, I only have a few pairs of pants at a time... right now it's 2 pairs of jeans (both of which I can take off without unzipping/unbuttoning) and a pair of WAY too big black dress pants.... once the pants are ridicu-big and/or full of holes, they go to donations/textile recycling (there's a booth at the farmer's market)... I have a neighbor who's a seamstress that also appreciates some of the old stuff to use as material.
For shirts, I'll hit a sale and get the same shirt in multiple colors, so, for example, right now I have a v-neck in black, royal blue and forest green, and scoop necks in black, gray, and light purple.... plus a few "nicer" tops. these last through more sizes than pants, black goes with everything, so I have a lot of black.
I'll probably do another big purge when I'm down to the size I think I should be... I have a bunch of jeans and pants in smaller sizes stashed away, but I'll probably get rid of the multitude of size 6ish pants ('cause I'm bigger than that now and should be smaller than that when all is said and done.).