I try not to brag much, but that's what this section of the forum is for right?
I got a nice raise last month. I immediately increased my 401k deferral by 5% (almost to the max now), and factoring in my increased income and my projected freelance income for this year, I also increased my federal income tax withholding.
The net result was my paychecks shrunk by about ~$50. I am sure most people would freak out if their check shrunk after getting a raise, but I just feel more badass :)