I tend to use music & tea to keep me going during marathon techying sessions, although with reference to your question about "breading technique" I do, as regular CBers will know, occasionally break off to bake bagels.

Shifting on to an unrelated problem for a while can also be a useful technique - a friend of mine works with 3d graphics to chill out (although IMHO the occasion I visited him in hospital and found him sat up in bed writing graphics code on his laptop may have been excessive.)