There’s a new $1 off Munchkin Click Lock Cup coupon for a 1-pack or 2-pack! I’m not sure what the prices are on these, but I would imagine this would be a pretty good deal on the 1-pack. You may want to go ahead and print the coupon and bring to the store just in case.
I found it on page 3 under zip 30044.
More great Printable Store Coupons!