I just bought the MS Wheel Mouse Optical for $14.99 that came with a $10 rebate = $4.99
I found the deal at a local CompUSA. The tag says $19.99 w/ no mention of the rebate. But when the clerk rang it up, it says 14.99 and then she also handed me a $10 rebate form.
According to the rebate form, this deal is active from 3/15/2003 thru 3/19/2003