Maybe bouldering is the answer...

Talking over our current climbing woes with our sensei this afternoon, he came up with a good suggestion: why not just borrow a guide book and a crash mat and go bouldering on Dartmoor; it's free once you're there and it's a good way to keep in practice. Then he thought about it for a few seconds more and said, "But you're having car problems, you said, so you won't be able to get there..."

Sounds like a good idea to me. Maybe once the summer is over, the hordes have gone home, and we have a good fall, we'll give it a go...