CDTraveler, the method does indeed fit the OP's stated circumstances. If that is too difficult for you to understand, I can't help you.
If you are being pedantic, well then tell me why making a list and sticking to it will not work for both leisure and business travel.
I think the OP probably has enough intelligence to figure out that different lists can be made for different circumstances and that you will probably not want to have just one list that covers both (although you could). Are you trying to suggest the OP does not have enough intelligence to figure that out?