Just do like I do:
First of all, try to catch some nice airport scenery, of the airports you like (e.g. Airport 2000 series, or freeware add-ons).
Try to taxi your plane to a gate at your favourite departing airport, e.g. your home town airport. Then save this flight.
Then, set this flight as the startup flight. So, next time you start up FS98, you will sit in your favourite aircraft, ready for pushback at the gate.
For instance, I have saved a flight where the aircraft is docked at the B-pier at BRU. Since then, every time I start FS, I'm ready to depart to anywhere I want: Italy, France, Spain, or even long haul. The only thing that I still have to do is start GPWS98 (great adventure) and Real Weather. Then I'm cleared for the pushback! Very realistic, don't you think?
Ivan Coninx - Brussels Aviation Photography