I do the same thing for the very same reasons. If I broke even I would waste the money on small bs. This way I can waste it on big bs ! My wife and I also get our bonus checks at the same time we get our tax returns... Makes for a fun little time of year for us.
This year I'm remodelling my house, getting an assault rifle, new wheels and running boards for the edge, possiblly switching out the block in the TA, taking a family vacation to Florida, and putting the rest in savings.