good advice above. the singles lines move quickly in the worst of cases. i don't think crowds will be an issue during the week. on weekends try the pioneer lift or sunnyside to get out of the high traffic areas.
another thought would be ski school on the weekends. group lessons enjoy great access and in some cases private lessons get even better line access.
i skiied yesterday (super bowl sunday) out of uniform with a friend and the singles line was the answer a couple of times. obviously it wasn't too terribly crowded due to the game.
whether or not you take a lesson be sure to come by adult line-up to introduce yourself. we are enjoying a record snow year with 20 feet on the ground to date!