You wouldn't hire a plumber who isn't comfortable using a wrench, or a lumberjack who can't handle a chainsaw.  A professional needs to master the tools of the trade. For independent consultants, a fundamental tool is Excel. For most, it isn't necessary to program in Visual Basic or write macros, but it is essential to master all the basic tools, including, for example, pivot tables, vlookups, if functions, date functions. In this short episode, I share some suggestions on how to sharpen your Excel skills if they are rusty, and some particular Excel tools to prioritize learning.