The Zen Habits blog listed ten questions that can help you take action. In this series of posts I suggest how to apply those specifically to writing more. You can easily adapt them to drawing or whatever other creative activity you'd like to increase.
3. If you do this every day, what change will result?
If you write every day, what will happen?
Eventually you'll have a complete novel or screenplay or whatever you're writing, but beyond that, do you think the process will have taught you anything?
Will it give you more confidence to tackle your next project and maybe more confidence in yourself in general?
Will it show others that you're serious about your writing? (Maybe we shouldn't care what they think, but we do, don't we?)
Considering the cumulative results of small actions can help keep you going.
