I'm alone for much of my work day, so I'm able to integrate some less stealthy elements into my routine. One of the things I've been playing with is a rotation of rice socks to keep my penis warm (thus extended) for hours at a time. Is this useful-- perhaps as useful as a cock ring? Would it prove beneficial in conjunction with a cock ring?

For the record, fertility isn't a consideration, as I've had a vasectomy.