Avoid buying sports accessories until you know that the activity is a fixed habit. For example, don’t buy a gym bag until you’ve been to the gym 20 times. Don’t buy good inline skates until you’ve racked up 200 miles on the cheap ones. Reward yourself with a Walkman after you’ve jogged 20 miles with only the sound of the wind in your ears. Then buy all that stuff used.
Get your wallet ready -- Memorial Day sales are here. We've rounded up some of the best deals you can score this holiday weekend.