For hours, we do that weekly. With a small crew, daily just doesn't cut it for us and I usually take the readings.
On our fuel pad we have a list (Excel spreadsheet) to log gallons for each machine, as well as a spot for mixed gas.
When operators fuel up, they log it in. Again, a weekly total is added to each machines file.
Starting next year, all keys will be hanging on a master board. Whoever signs a key out (initials) is verifying that fluid levels and tire pressures are correct.
I want my guys out fast, but with this basic system I have the ability to see who checked something out, and how clean and intact it was returned.
Shoot me an email or call if you want specific lists