I spray baste. I pinned my first quilt and nearly gave up quilting. Then read about spray basting here. Nearly 40 projects later (mainly throws and twin sized) I am still very happy with the June Tailor basting spray I pick up at JAF with a coupon. A can will last at least 2 twin sized quilts and saves me hours on my hands and knees and several trips to the chiropractor.
In winter, I baste downstairs on a folding banquet table after throwing down an old sheet. In the summer, I'll often set up the table outside in the shade and spray away.