Logan, I would highly recommend that you inform everyone to mail in the UPC code on rebates as close to the 30 day mark as possible. Retailers give you 30 days to return an item for refund or replacement in the event it does not function properly, and most rebates provide 30 days before they have to be postmarked for this reason. Without the UPC code, the retailer will not accept the item and you will have to mess with the manufacturer. Most manufacturers do not offer advanced RMAs or pay for shipping the item to them. I just wanted to bring this up as today's PC builds almost always come with rebates and I made this mistake (but never again!).