Wow do tell!
Discount codes, coupons, and looking for pricing errors is how I like to shop and save money at AAP. For example yesterday I found a bottle of Red Line SL-1 fuel system treatment listed in-store for $9.99. That is normally $14.99 and I pointed out $9.99 price tag to the staff at checkout and they honored the $9.99 price without questioning anything. With a $5 off coupon I paid $5.49 after tax, the funny thing is I went in to get a bottle of Royal Purple Max Clean for $18 but could not pass up this opportunity to get this bottle of SL-1.
Also if you turn in a used battery at AAP they give you a $10 gift card. I have gotten several of those and put them to good use.