The Royal Institute of Navigation do a great little booklet on VFR navigation. It was given away with Flyer magazine a while back and is written by a guy from the CAA who used to train RAF pilots and navigators in navigation skills and regularly presents at safety evenings etc. Can't remember his name I'm afraid.
It may even be available on the CAA website somewhere. I've looked but can't find it for you although I have the hard copy at home. It is basically teaching you to follow the same workflow pattern for each leg of navigation route. Very easy to understand and I found it consolidated everything I learned during the PPL and has helped immeasurably - freed up time to actually enjoy cross country flights.
Maybe Flyer magazine has some still knocking around the office?
(BTW, they also do a similar booklet on GPS navigation which is also good)
Lunchmaster