Music. You really can't beat it.
Edit: actually insulting @
RichP comes pretty close....
Be careful, Slomo...Rich is THE Butcher of Sussex - a modern-day camorra. Cross him, and you'll not find a horse's head in your pit...but you will find a lump of gritty meat on the road outside your house. Beware, there's a lot a stake!
I post on CycleChat when I'm fed up - harbinger of gloom and doom,me. When I've cheered up a bit, I eat an apple or make a cuppa...do a bit of work, that sort of thing.