When we were kids, we loved to ride in or underneath the shopping cart while Mom propelled it along. Now that we're older, we shop at Fiesta -- not just for the value, but because their carts can easily be wheeled off the premises and used for a little extracurricular activity. Here's what you do: Gather three friends, retrieve two carts, and mosey on over to a quiet, straight street for a head-to-head race. The rules are simple: Each cart has a rider and a pusher. As the riders brace themselves, the pushers take off at full speed for ten seconds and then let go. The winner is determined by whoever makes it the farthest (basically, whoever doesn't hit a curb and crash to the ground). If only Mom knew what we were up to.