Here’s some advice for the days you just don’t feel like it. You’re just back from a long trip…you had a rotten sleep…whatever. Okay, advice: Do some damn thing anyhow, it’s important. If you default to aerobics, do long and slow for half an hour at least. But take it easy on yourself…or next time you won’t believe it when you tell yourself you “only have to do long and slow for half an hour.” And you won’t do anything. THE GREAT TRICK IS TO DO SOMETHING. Keep the string going. Keep the stakes high against ever doing nothing. There you go.