Events and trips planning

I do usually plan my trips or events with a two or three months period (always I can) so I can take a perspective about the different weeks, in order to plan my work according to the goals that I have to achieve.
One of usages that I mostly do, it is planning these trips and events via mindmapping, so I can easily get back to them with simply a glance.
Also when I am outside the office and I need to remind events or trips, I used to remind the whole picture so I can, as a results, get the details and all the reservation status.