In case you didn't know, one of Houston's only claims to world-class fame, the Art Car Parade, is this weekend. Stretching into a string of related events, there's a Sneak Peek at Discovery Green park, 7 pm Friday May 8. Then Saturday, May 9, the big parade rolls down Allen Parkway at 1 pm. Sunday there's an award brunch at the Orange Show from 11-1. It's all FREE.