I just did the last of my Thanksgiving shopping at Costco and picked up their Thanksgiving Weekend Savings coupon book. Stores open at 9 AM Friday. Try to stop by to pick up a free "Smart Cooking the Costco Way" cookbook.
Here are some of my favorite coupons (good Friday-Sunday):
$45 off a Sony Blu-ray Disc Player
$70 off TomTom GPS
$190 off a Vizio 55" 1080p 120Hz LCD HDTV
$70 off a Dyson DC14 All Floors Bagless Upright Vacuum
There are pages and pages full of deals!