Camera shake cures are similiar to shooting a gun.
Tuck elbows in to chest to brace your forearms.
Breath in, then 1/3 out and hold, stabilize, then squeeze off shot.
Follow through. Squeeze and hold button instead of 'stabbing' it and releasing it quickly. When shutter drops again the image should still be centered in viewfinder.
Not much diff from shooting a gun really.