I usually use my tax return as a gift for myself. I don't claim any reductions on my taxes, so my tax returns are usually pretty nice (on purpose). Its not quite a Christmas gift to myself, but close enough. Two years ago I bought myself a TV because I kicked my roommate out and he had the only TV over 13 inches. I spent 3 months watching TV and news on a 13" Sylvania television from 1992 haha. Little bastard still works too, they made a badass TV set.
I think this year I'm looking at a 20" TV for my bedroom with my tax return. I usually go to sleep watching netflix on my laptop, but if I had a good TV capable of the cable I already pay for in my room I would lay down at a more decent time (9-10pm) and watch the news and maybe a little Conann before I fell asleep instead of watching them in the living room and THEN heading to bed and watching 3-4 episodes of Star Trek because Im still wide awake.
I usually try to save the vast majority of my tax return, but what fun is life if you don't spend a little bit to better your everyday life? =)