Mostly cargo pants, like Erica H, with some shirts that I bought from a guy who made them himself and sold them in the markets. I got 5 of them.
They all have 'soft' collars and either 'toggle' buttons (buttons with a loop) or zips. They go far enough down that you can get your head through the hole.
Think a *really* well made t-shirt with a collar. I bought them 6 years ago and they are only now starting to look crappy.
Either those or my super big red shirt. It's about 4 sizes too big, so it's good to just bum around in, but it's still good enough to wear out shopping or whatever.
The good old standby, Jeans and some sort of jumper/pullover for when it gets cold.
Usually get around in bare feet or thongs when I'm at home.
New Balance runners for 'serious' shopping trips or when I'm out for extended periods.
My 'Singapore' gear for special stuff. Airflex slip on shoes, pants and long sleeved shirt (both charcoal), tailor made for me when I was in Singapore.
First time I wore them I looked in the mirror and thought 'who is that guy?'. Seriously.