The guys have listed most of what I use; but I carry in with me a side tool pouch with a Stinger flashlight, pen, shutoff tags, 8' tape measure, outlet tester (w/GFCI), level, temp sensor (pen type), utility knife, voltage sniffer, screwdriver. laser pointer, dust mask and of course a camera (I actually get all of it in a small pouch). I also carry a tool bag in with me containing a small tarp, shoe covers, spare batteries, extra camera, extra flashlight, binoculars, 25' tape measure, water bottle and my paperwork/leave behind stuff. In the van, my ladders, raincoat, and a small toolbox behind the seat with odds and ends including tyvek suit, masks, gloves, toilet paper and spare light bulbs. I also have a hard hat for nasty crawls. It may seem like a lot, but my tool bag usually stays by the front door. My worksheet has a checkout section where I account for all of my tools before I lock the door. -Hope this helps you out.