We have been looking for a GPS for our road trips, but could not decide which model. I just searched the CouponChief website and was rewarded with two different Dell coupons, each with a sizable discount on a nice GPS unit.
There are more than 1,000 coupons on this site, so you may always find a store relevant to your needs. There was a woman on the PPP forums today asking about a computer. I found a Fujitsu coupon for $50 off a $1000 purchase. That was the exact amount of what she was going to spend.