Unless youve already made your own checklist(s), chances are youll want to add a few items to what youve got so far. Say you mostly fly IFR. Youll want IFR-specific items in your checklists. So, consider adding items for flight plan (checked), departure briefing, approach briefing, etc. Or, perhaps youve found that turning off your fuel pump during the After Takeoff check is something you often forget. Consider making a redundant entry in the Cruise check.