I have one skirt, top and pair of shoes for being "smart". I try not to be smart most of the time.
My Cali slippers are a pair of Skechers go-walk slip on's that I wore to walk my dogs 6 miles a day on my last trip, as well as just being comfortable around the cali, useful for slipping on to pop to the loo and even smart enough with a pair of trousers to pop out to dinner in.
I run rather than cycle, (or will do again once I am 13 weeks post surgery,) and I need shoes, a top, a pair of crops ... that's it. Wear, rinse, dry, wear again. The shoes are a luxury item. No other uses unlike everything else.
Everything else I wear are all from technical, quick drying, non-creasing fabrics, easy to rinse and dry overnight. I use the underbid drawer, one shelf of the rear wardrobe, and the front wardrobe for clothes. If I need space for more then it doesn't travel.
Bedding sits on the parcel shelf. All of it. One duvet, one mattress topper, a couple of pillows that also have spare covers and make for daytime cushions. Duvet is 7 tog. Any heavier and I will find myself asking why did I bother getting a van with a diesel heater.
Towels are all microfibre and not very many of them. Wash, dry overnight, if necessary.
I use a BIAB and a folding seat that stows in the otherwise useless space alongside the rear bench seat. Out of the way until needed.
I am not short of space.