The Petco shipment arrived last night, and fortuitously my coworker who owns the gecko took a vacation day today, so I spent some time today cleaning out all the wood chips from his tank (substrate is NOT necessary people!) and cleaning his water dish. He is loving the under-tank heater - his hidey hole is made of rock-like material, so it also gets nice and warm. I bought a couple extra hidey holes made of coconuts and one is on the "cool" side of the tank, although he is enjoying the warmth so much he hasn't even bothered to go in one. My coworker hates mealworms so I can't leave them in his tank; I did put in in a box with a few mealworms to see how he liked it. He wouldn't eat any last week, but maybe that was because I dusted them. Today he attempted to eat one that was rather too big for him, so I dug out two small ones - I think he's sleepy now though so there may be no more attempts. Mealworms stay good in the fridge for a long time so we can wait until Monday to try again.
I had to move his tank to a new (more visible) location because the under-tank heating pad doesn't have a very long cord; I wonder if she will cover it up, or suggest he be moved elsewhere. (Like an empty office.)