After Christmas is good, but the pickings may be slim. I always go to all my local stores on Dec 24 to see what kind of stock they have left. That way I know where I want to be at 6am on Dec 26 and in what order I want to go from store to store. On the other hand you have to get in the habit of watching all the sale ads starting now. Big Lots has sales with 20% off from time to time. My 64 strings on my megatree came a few years ago when Home Depot had a trade in sale before Thanksgiving where you could get a couple of dollars off of an LED string for every incan string you brought in. When I did it then the coupon given for every trade-in string could be used to buy up to 5 strings of new LEDs and it said to give the coupon back to the customer in the fine print. I had multiple coupons so I bought 5 per coupon , put them in my car, walked back in and bought 5 more per coupon until they ran out of colors I wanted. Then I went to several other Home Depots looking for the colors I wanted. HD have been more restrictive with coupon conditions since then, but my point is that you need to watch and read everything. GE had coupons in the past and Lowes took them and that was a good deal also. Read posts on DLA, DIYC, and Planet Christmas to watch for deals. Good luck.