I don't know if this is good for all rebates, or just certain ones, but I was starting to fill out my rebate form for Flush and Be Fit when I noticed there was an online option.
It took about a minute and a half to do online, and I didn't have to send anything in by mail. Sweet!
Plus, if you choose to put your rebate on a Walgreens Rewards Card (seems similar to a gift card) you get a 10% bonus!
Again, I don't know if this is true for all rebates, but I definitely dig this new option!