My warm weather uniform is comfy shorts & t-shirts & flip-flops (or knee sox if the A/C is freezing my legs); my cold weather uniform is sweatpants/shirts & thick sox & thick padded slippers. Except for when I need to go somewhere, (like grocery shopping) I keep the same clothes on until my next shower (which is often enough so that I & others can stand to be near me at all times). I never know what time of the day or night that I'll require a power nap; I'm not changing my clothes for those naps (which can sometimes last all night!) With these 2 standard uniforms, I am always prepared ... for naps, for housework, for sewing, for trips to the paper box & the mailbox, etc.
And a p.s.: I do have grungier clothes/footwear that I wear when I must go outside with my gardening tools & play in the dirt.