Went to Lowes yesterday and looked through the oops paint. Found a gallon of Acrylic in what could best be described as taupe. Actually not a bad color, perfect for swarm traps. Discounted to five dollars. In any case, went to check out and I got a rebate receipt for five dollars off any paint, one gallon or more. So for the cost of a stamp and a quarter (Virginia still gets the taxes!) I get a gallon of good paint + primer. I wouldn't make a special trip just for mistake paint, rarely do I find exterior paint in the oops pile, but if you are near a Lowes you may want to check. I think they are running this special until the 3rd.