sage advice I received a while ago (on the no-end-in-sight ripple along) to crochet over the ends as I go, I only have about 50 loose bits of yarn to darn in. I wish I had asked sooner!
It is a lovely thing to work on - so satisfyingly heavy to sit under on winter evenings, and easy to pick up in the few unscheduled moments. It's not really portable any more though, so I can't work on it while out and about. Maybe I should get into sock knitting or something - that has to be the ultimate in take-it-with-you crafting.