I like to set personal goals and targets for myself to reach. Like, when I've completed so many tasks or done a certain amount of work, then at the end of the month after I've paid the bills, I'll have a bit extra to do something I really enjoy. Like going down the pub with my mates on a Friday night for a pint or two, or taking a day and going to the seaside. It's obviously not always a fail-proof way to stay motivated, but it certainly helps to know I have something to look forward to if I keep working hard.