h2g2 The Hitchhiker's Guide to the Galaxy: Earth Edition

Walks are a great way to spend a Sunday afternoon. Have an indulgent Sunday lumch before setting off to walk around for a few hours.

It doesn't have to be planned, if you live in a city you can wander around there. Planning a walk can get complicated, but you'll often get the best results.

Forest is also fun for walks. You can gambol in the dead leaves and small children have great fun collecting sticks and hiding behind trees etc.

Yeah, and if you have a moderate case of hangover (you know, not the "I just want to die in peace" variety, more of the "sligtly woozy but at peace with the world and quite likely to watch a Hugh Grant movie at some point this evening" sort) then a walk feels even better.