In addition to a standard GHB and spare clothes (including rain gear and a pair of boots) I always carry two wool blankets, space blanket tarp, small ax, shovel, saw, small pot with alcohol stove . . .

In the winter I'll throw in a sleeping bag, parka, heavy hat, etc just for season.

If I'm going to the mountains or longer distance a few other things get added like the snow shovel and snow shoes. Just depends on the environment I'm going to be in that day. Just around town I've still got the previous gear all the time.