I find the GPS watch is quite motivating - being able to track the workout and show it off to your mates if its mildly impressive can be a good motivational tool to get out there and share the experience!
Just to let you know entries are well and truly open for this years 10k and fun run on October 13th. ...... www.Sheffield10k.com ..... Arguably one of the most varied and interesting 10k courses in the country... Have a look on the website for all the deets