I do not loose tools any longer.
My toolbag has many outside pockets and contain all my expensive tools. I make sure every outside pocket contains a tool before I leave the home.
As for the checklist, The listing Agents are on site 99% of the time (in my area) and they always stay behind to check thermostat settings and shut off lights. I always make sure I mention this to the agents before I leave.
I also leave a courtesy table card on the Sellers kitchen table with my brochure and business card. This courtesy card states the following…
***Thank you for allowing me in your home. During the inspection I tested and changed the settings of many systems in your home. I do my best to put everything back just as I found it. Please take a moment to check all of the settings and controls within your house to assure that they are at your comfort level. If you have any questions or concerns please call or e-mail me. ***
Certified Massachusetts Home Inspections