I'm trying to do that 30-minutes-moderate-exercise-per-day thing. So either I walk part of the way home at night (which is perfectly safe to do here), or I dance for 30 minutes in the sitting room (the cats are much amused). Then I cool down with the sword exercise or the bits of it that I have learned so far. You can see the full form on Youtube - look for "Yang-style sword Master Tung".