Other good reasons to put off your Spring cleaning this weekend include the 51st annual Loveland Derby (billed as "America's Largest Amateur Ski Race") on Saturday, Aspen Highlands' Big Air Saturday contest on Saturday at 3 p.m., followed by Sunset Skiing with lifts open until 6:30 p.m., and the free one-run lessons under the Black Mountain Express lift at Arapahoe Basin from 10 a.m. to noon on Sunday (lift ticket not included).
If you've already switched sports for the season and need some new gear, make your way to the Aurora Bike Swap at Bicycle Village on Saturday or the Gear Swap at Neptune Mountaineering in Boulder, also on Saturday, from 3 p.m. to 5 p.m.