How long to go from idea to execution for a trip?

Mr. Anal here----I have a "take" list that I print out for every trip we take. It includes items to take care of here at the house, arrange lawn care, water, heater, computer, mail pickup, etc.
I then have a list on what to leave the house with; bear spray, which ever caliber protection, number of undies, bikes, computer, food, liquids, fishing poles, etc.
This has been a great help in not forgetting things when we want to leave.