When the sun's out, I'm out.
My activities include (knees and shoulders permitting): walking, ... maybe: shooting hoops, practicing softball. Mostly walking at least 90 minutes a day.
Stop Using Petroleum. Don't buy a new car unless it has a plug. ALL power should be based on electricity. Produce it with wind, sun, hydro, … Forget corn based ethanol, hydrogen and coal. Inter-city travel should be primarily by new high speed, high tech train, not airplane.