Checklists
Check lists are standard on large aircraft and small.
The more complex the checks that have to be done the greater the need for check lists. I use them as a check against forgetting an item.
Most pilot use a left to right, top to bottom, check of the overhead panel, front panel for each part of your flight including;
pre-Startup
Startup/after start
taxi
pre-takeoff
after-takeoff
cruise
decent/approach
landing/on final check
taxi
engine shutdown