I have a fairly small wardrobe (by American standards, at least). I have a certain amount of nice wooden hangers (not sure how many, but I could go count, lol) and that's all the clothes I keep in the closet. It's worked well for me to keep a handle on things. I always feel like I have something to wear that fits, and if something new comes in, the old goes out, b/c I don't have enough hangers.
Off the top of my head I have 3 pairs of jeans, various t-shirts/tanks, two sweaters, 3 dress pants, one pair of kahkis, two pairs of capris, 3 skirts, 4 dresses, several blouses, and a couple specific things for dress events (I play piano with jazz groups), four pajama sets/nighties, and one sweatshirt. I also have a drawer of socks and underwear, which I recently pared down.
I also keep a specific set of shoes on four shoe shelves. I can fit everything on those. I've been trying to buy really high-quality clothing and shoes that will last years. I've been losing some weight so once I get to my goal weight then I will clean some more stuff out b/c several of the things are too big right now
and update my dress pants and skirts, in particular.