Nice tree, DT! That's the best time to buy. I have to remember to do that. Once I bought wrapping paper after Christmas and it was 70% off. It was thick and sturdy paper...I still have some left since it was so big.
I don't really wrapped up presents but I have boxes of wrapping paper, all size boxes, gift bags, etc. enough to lasted for a while. Once it go 50% the good stuffs go 1st and then when it hit 70% if usually wrapping paper, gift boxes, bags, etc. that are left but still good to grab them.