California Micro Centers have a CENTERewards Program that entitles you to receive a special reward coupon every time you shop there.
Print this form to enroll, you'll get a 4-digit member number that you choose but no membership card.
When you present the form in person at the Rewards sign-up station at the front of the store, you'll receive your choice of a 4 GB SDHC card or a 4 GB flash drive. Then, every time you shop, just give the cashier your member number to receive discounts or credits toward future purchases. Only one Program enrollment per household is permitted.