I thought I'd been finding cycling harder again, and a quick check this morning confirmed that yes, my brakes are busted again. Don't buy a bike from Halfords, I'm telling you. This time though, one of the front bits has completely lost it's spring and needs to be replaced. Which is fine, except that they can't give it back to me until Monday. If only it was like car repairs where they gave you a courtesy bike to use while they're tuning yours up.