I like to do detailed planning for my tours and I created a webpage that puts all my research in an on-line database that I can access from anywhere I have internet access.
In the US, I can access the data using my smartphone from just about anywhere. Outside the US, I have found wi-fi readily available so, again, this data is easily accessible.
The page stores my usual packing list that I then can customize for each different tour I am planning. It also holds a day-by-day itinerary and other details.
Anyone can use it with a free login:
Bike Tour Planning Main Page
Here is the
plan I created for my last bike tour in Wales.