As with Jeff above, I don't really use anything much apart from the standard tools for my job SSMS, Visual Studio, Office and a couple of specific business systems. I tend not to customise my environment within these applications much either, mainly because I don't really see the point. It did make it much easier to get up and running on different machines just before Christmas when we lost power to our building a couple of times and I had a mixture of working at my desk, working from home and working in another of our offices!