JB French Cleaners
For dry cleaning draperies, I found JB French Cleaners in Culver City to be very good. They came highly recommended by someone who does a lot of sewing and handling of drapery fabrics (they also pick-up and deliver).
If you have denim new or old that needs patching, repairing, or taken-in, Ruff-Cut on Pico in Los Angeles does a really great job of making your denim last. For repairs, I just mail my item to them and they return it all fixed.
Sew Creative Cafe
Redondo Beach has sewing classes! I haven't done this yet, but if you have a sewing machine sitting in your cupboard having never been used, this might be fun to try. Read more about Clean, Repair, and Sew