Family and friends... without them grilling wouldn't be much fun.
I have purchased WAAY too many toys along the way. Some have worked well, some are in drawers, some are in the garage, and some are in the shed.
But the one I would not give up is my ThermoPop. Simple, easy to use and reliable. Not as fast as my British Racing Green Thermapen, but close enough for government work. Inexpensive enough that I bought one for each my daughters (so they don't fight over them or try to steal mine.)
Oh, and a really good set of heat resistant gloves.