For this shopping week (May 19 to 25 in 2013), Office Max has a Lexar memory card and USB sticks sale. Included are 8GB models (microSDHC, SDHC, USB sticks) for $6, 16GB models for $10, and 32GB for $19. The memory cards are class 4 (100x) at these prices.
Shipping is free if the total of your order is $20 or more. You can also select Store Pickup or buy them from your local Office Max store.
If buying online and you are under $20 with the memory cards, you can purchase them together with the 100% Rewards office supplies specials (yellow stickies, pens) and get the free shipping.
Office Max has another promotion for this week, pay $101 and get one $100 and one $15 iTunes plastic gift card. Shipping is included in the gift card price (99c). Their gift card product page is a chaotic mess, but basically you click on the first item in the list (23843520) with the "Special Offer" next to it. The Office Max shopping cart will automatically include the $15 free gift card. Please note these are both plastic gift cards to be delivered by mail. Limit 1 promotion per shopping cart. (There are plenty of camera and photography apps along with digital photography books and guides at iTunes if you are part of the Apple digital ecosystem).