[BlueMelon]

Most of my projects on Graal are created because an idea sparks in my head and I need to make it. Scripting something you don't want to make or not liking the idea leads to un-motivated work if there is no reward, especially on graal where most of it is hobby game dev. Make your end goal serve as motivation.

In the real world though (for programming), I keep myself movitated by maintaining a todo-list. By scratching off entries on the list you can see how much you have done that day, which is motivating for me. Trying something new is also motivating, new languages, new techniques, new technology, etc.
And ofcourse taking a break or getting your eyes off the computer screen can help get the ideas flowing.