Title says it all. Traps or a backyard setup or a coach
I don't, I just win.
Honestly though I don't really practice until the season starts. I might hit up the trampoline park every now and then and try some shit in the foam pit.
Usually tramp a few times in the summer, go for it on snow or use an airbag
Going to a summer camp really helps. But if you don't have that money just build a drop in or get a cheap trampoline.
Just ski a lot. I took up rollerblading two summers ago and it helped my skiing a lot. It makes you a lot more balanced and makes your rail game a lot better
I tried to blade last summer and that helped my rail game and gave me the confidence to try 270's on and off. I also bought a tramp from a friend of mine which gave me some more air awareness.
tramp, summer setup, camp, rollerblading, hockey (helps you use your edges & stopping & stopping, basically fundamentals)