Due to today's arguably miserable weather -- 88 degrees in downtown SF as of 2 p.m.! 92 degrees at Mineta San Jose International Airport! SFist Editor's Caramello liquefied beyond recognition! -- today's Spare the Air Day has been extended until Tuesday. That is to say, you should take public transit in lieu of driving, turn up the air conditioner if you're harboring infants or the elderly in your home or office, "avoid using gas-powered lawn movers and leaf blowers," cook indoors and not on a barbecue (AKA "grilling" to you foodies); and keep the Aqua Net to a minimum. Public transit, we should point out, is no longer free on Spare the Air Day. Alas.