I stopped by my local Home Depot yesterday to buy a can of polyurethane... I decided to check out the oops paint. Grabbed 2 colors from the sample sized Behr paints for $.50 each. Was surprised to find other items as well. We are in the process of waterproofing our basement. So finding Drylock, "Etch" at $1.66 was a good deal for an open bottle. Originally at $6.99... And the best part, I also found silicone caulk that was for free! I have never seen that before. I'm going to definitely check that area more often!