ROFL... I called it the "laundry situation" in my own house for some time.
What I instituted is the following:
Everyone does their own laundry and is responsible for putting it away once dry. Everyone has a basket, and my son and I do our own laundry twice a week on average. So laundry gets started almost every morning, but it's only one load. Mine, kiddo's, sheets & towels (whites), mine, kiddo's, H's. When kiddo's cousins were staying with us we ended up doing about 2 loads a day. YES doing laundry every other or 3rd day means small loads... but for my son (or the kids depending on who's living here) it means that they don't get overwhelmed.
Clothes are only allowed in 3 places. Put away, on your body, or in the hamper.
When my H is in a good mood he likes to do everyone's laundry for them... and we end up with ginourmous piles of clothes all over the place that have to be sorted, found, resorted, rewashed. He means well... but it creates a giant mess.
As far as NUMBERS go... Kiddo (age 8) has 3 pairs of shorts, 2 swim suits, 6 pairs of pants and about 10 shirts (short and long sleeved). Sports clothes are kept in seperate cubbies. Soccer has a cubby with jersey, shorts, shinguards, cleats, socks... gymnastics has a cubby... snowboarding has a cubby... etc. That way, when it's time for an activity it's "grab'n'go".
BEFORE he was potty trained I made sure he had enough clothes for a full outfit change 2-3 times per day.
And just on the "creative" bent... we ditched hangers and dressers in our house several years ago. Instead we use roundy metal hooks screwed into the wall, a hanging sweater cubby thingmy, and a 3 drawer nightstand. First row of hooks is at shoulder height (for shirts), 2nd row of hooks is at waist height (for bottoms), sweater cubby is for activities, nightstand is for socks, underwear, and jammies (no folding needed for any of those!). That way my son could hang up all of his clothes on his own since 2ish. For dresses/drycleaning I installed a "tie" rack off to one side.