theories of home organization?

[pastfancy]

I try, but I fail at keeping my clothing organized. I have a fair amount of closet space and a lot of drawers, but every time I try redo my clothing, like after a big laundry day -- the organization deteriorates very quickly.

So, anyone have any advice on how to organize clothing? What categories do I use to determine where things go?

Business versus casual versus dressy/party/fun clothes?
Organize by color?
Organize by warmth level (like, heavy sweaters and shirts versus lighter shirts that need layers)?

See how lost I am?