Hello,
Here is what I do when doing some on-line flights:
1) Using aircrafts with FS2Crew (usually LevelD Sim 767)
2) While Airborne, monitoring the flight (FMC), Fuel levels
3) Preparing STAR / Arrival procedure, and checking TAF
4) Preparing Arrival to alternate airport if diverted
5) Check traffic in my area with IVAE especially if there is no controller to manage conflicts
6) Sometimes, I monitor my flight using MyFSGoogleEarth and Google Earth.
THat's all folks.
Cheers
Kristoff
(EHM1945)