I do it how Sohni said, but as insurance, I keep a few treats on hand, as well. Since I clip his claws by myself, I need all the backup I can get.
I find if he wakes up too much or gets too pissy, I offer him the treats and he'll put up with it a little longer. If he's more awake/alert to begin with, I sit on the couch, right near the arm, and have him in my lap.. lured by treats. I put a treat on the arm so when his paws settle go up on it, I wrap my arm around him and grasp his paw and work as quickly as I can. I don't clip much, just the very tips to dull it. I do it about once or twice every two weeks, depending on his moods.