Bring your own bags to the store

After the race, we stopped at PCC, one of the lovely hippie grocery stores in Seattle. They had this sign up in the parking lot reminding you to bring in your own reusable bags. I love this stuff! I am kind of crazed about bringing your own bags. I keep a million in the car and have even been known to lend them out to other people to keep them from getting a plastic bag. Has this trend caught on out there in the East yet? Can you guys start it?