For a Christmas gift last year, I received a Weber Jumbo Joe (18") Grill and a table to go with it. On occasions, I have thought about putting a thermometer on it, and I was wondering where the best place would be for it. I am thinking of one of four options: 1. Take out the screw for the vent and put the thermometer there. 2. On the top of the lid. 3. On the side of the lid. 4. Leave well enough alone. If anyone can help me, let me know.