the traveler, vang, and mainsheet are my 3 main sail controls.
Going upwind, I
-let the vang off
-sheet in the main until the twist is right (all telltales flying, or less sheet if too much heel)
-Play the traveler alone with the lifts/headers/gusts. Only touch the sheet in a really big gust
Downwind
Traveler all the way to leeward
Vang on to keep the boom down and telltales flying
Play the main sheet
(In heavy air, same thing, but the vang is barely / not on)