How often should I be lubing my chain? I've had my bike for about a year, it probably still has fewer than 100 miles on it (though rapidly increasing now) and I've never lubed it :-/
I know some people who lube their chain every ride. I lube it every longer ride - or perhaps every 50 miles worth of short rides.
Learn what a well lubed chain sounds like. If it starts squeaking at all, then it is overdue for lube.