Yesterday when I bought my Crayola Markers at Walgreens I noticed there was no household limit on the form. I was near a Walgreens again today and bought 2 more with the hopes that I could submit for all 3. I just called the 800 number and spoke to a customer service rep that said it is a oversight that they left off the household limit of 1. Therefore, as long as your receipt is dated 8/1 or 8/2 you can submit more than one. I told her I had 3, she said I can submit all 3 (in same envelope)! I have a feeling that they will be changing the wording on the Catalina rebate form soon, so go get your FREE markers now!