I'm really lucky because we have lots of foraging possibilities right on the doorstep. I can reach over our fence and harvest elderflowers, elderberries, hawthorn and sloes from the remnant old hedgerow next to our back garden. If I go onto the public path at the side of our house there's more of the same plus blackberries, hazelnuts, crab apples, rose hips and nettles.
A little further afield there's all kinds of plums and apples. If I was even more adventurous I could tap the birch trees bordering my garden and make birch beer, or attempt some ersatz coffee making using the acorns from the oak tree up at the allotment. The beech hedge by Threadspider's house has possibilities too. I'm sure there's even more bounty out there which I'm not yet aware of.
However, my best find so far is that one of the houses round the corner has a number of almond trees in the back garden. I found these on the pavement recently and couldn't resist bringing them home. Of course the owners get most of the crop, but it's rather nice to have found enough nuts for a celebratory feast later in the year :)
What have you found in your local area?
NB The above picture features hand modelling by NAH ;)
Update 21/10: I've often wondered whether I'm actually stealing when I do this. An interesting article by the BBC on the legality of foraging suggests it isn't, as long as it's just for personal consumption.