I've looked into Tunisian crochet, and I like the look. I just really like to knit.
Like you, I have gobs (gobs-gobs-gobs) of yarn. Maybe what I'll do is make a bunch of scarves and hats out of my stash of yarn, and then donate them to a local shelter. Scarves and hats are great for pick up/put down projects, they don't take a lot of yarn, and I can try out new stiches.
Also, the small lap blankets are very nice for a person in a nursing home.