Stole this idea from another site. What have you got in recent memory that at the time you felt it was just money blown? Then find it was real handy, why didn't I have one before. For myself it was getting a DeWalt 20volt 1/2 in. Impact, and the hand held tire inflator, by the same company. The impact has proven itself many times removing bolts, lugnuts and such a big 4-way would not budge. The inflator has been so handy, keeps from lugging the steel air bubble around. Plus this one has built in pressure gauges, auto stop when set pressure is reached, and can be used to blow dirt off. Nice thing is they use the same 20volt batteries my other dewalt tools use that I bought back in 2012. So what did you guys splurge on?