Some suggestions for skiing:
Kendall Stump at Snoqualmie Pass. In Martin Volken's backcountry skiing snoqualmie pass book.
At Crystal Mt. ski area, you can tour up past the Quicksilver lift, up a cat track at the top of the lift and into Silver Basin. This is a nice bowl, though steep & corniced along much of its ridge. It's accessible from the ski area and gets some control work plus lots of downhill traffic although somewhat fresh & good turns may be had even a few days after a storm. Check w/patrol regarding access.
Heather ridge, opposite Stevens Pass ski area. Ski up the ridge, lots of options for turns depending on stability.
Yodelin, a few miles east of Stevens Pass, used to be a ski area, and is now frequented by BC users.
If you haven't found it already, check out the turns-all-year website.