I'm kind of a natural person and I don't usually attend anything considered 'fancy'. I don't wear make-up (but I still take proper care of my skin,teeth, finger and toenails) and my hair is long, bushy, and it kind of does whatever it wants - though I still try to brush it once or twice throughout the day. So, mostly it's jeans, t-shirts, flip-flops/skate shoes (or barefoot around the house); however I've never worn clothes for a second day, unless I had absolutely no choice (suddenly staying somewhere I hadn't prepared to stay, overnight). They may not be ironed, but my clothes are always clean.
Though when I am alone, I do tend to wash up, lotion up, brush the mane, and get dressed anyway because I have a lot of spontaneous people in my life and I don't know where I might be that day; which was the point of this whole damn thing.