I do the wall-jumping thing, like Vlad, except with no gravity.
When I was a kid I had one flying dream, though, where I could fly around on toy airplanes, kinda like I was sitting on a hobby horse.
Whenever I fly in my dreams, I control it by using my stomach muscles. I have to keep them flexed in order to remain aloft.
I used to have to ‘jump’ or use gliders or concentrate very very hard to fly in my dreams - but no longer. If I want to fly, I simply do so. I can look at a place, close my eyes and will myself to reappear there - so long as I remember that I can do so. Wish I had remembered that in the dream I just woke up from - major frustration.
Hail lucid dreaming 