Luckily, I don't really get writer's block! I think it's because when I started seriously writing I still had a fulltime job that took up much of my time. That meant had to squeeze in writing time whenever I could--on the ferry ride to and from work, on my lunch hour, on the weekends, etc. That meant I had to be very good at picking up my laptop and just writing. I learned to plan for my next writing session at the end of my current writing session. At the end of each writing session, I'd write a summary of any scenes I wanted to work on during my next session, including high-level bullet points. Then, when I start my next writing session, I just read my bullets and get going. Things usually flow from there.
However, in the rare event that I do get a touch of writer's block and require some inspiration, usually all I have to do is listen to a song with lyrics that bring out an emotional response in me. That usually works for me :)