I type out my own "plans" before a trip . If you know how to use excel - the forms can be useful (i'm not skilled at it so I find it frustrating).
I put on everything:
1. flight info and times i need to be there, etc... (brief list of absolutely must haves like licence, tickets, etc...)
2. Transportation info and phone numbers for alternate trasportation if necessary.
3. Hotel info (conf #, address, phone, type of room booked, cost, how I paid , etc....)
4. Sites /attractions to see and on what days with transportation needed. Perhaps list what is important to me at that place.
5. Any reservation #, I generally have an idea where I'll be eating that day, etc...
6. Notes: like what requests to ask for when checking in, or a list of discount coupons I have to remember to ask for the discounts when I visit those places.
7. Any phone numbers I think I'll need or might need.