I buy the Gravel Gear from Northern Tool for around the yard in the summer. They are a really nice lightweight nylon for keeping cool and dry really quick and the price is right.
They are extremely comfortable and easy to slip on and off!
Gravel Gear Nylon Ripstop Shorts
I use the Cool-Tan shorts when I need to where shorts around home but also when camping at non CO places which we will be this week-end.
Sometimes wear the lycra exercise shorts as well at home f I get caught out, makes it look like I've been exercising.
May have to check out the Gravel Gear type too.