Do you like to write in order or randomly jump about? I find that if you know certain points of story, and are kind of stuck, it can be well worth jumping forward to help get things back on track. Plus it can be fun to try and connect back together later.
As someone who is writing a stupid long story, jumping ahead is sometimes what you need to do, and while doing that sometimes what you need to do to get there just falls in place as you realize something has to happen for the events you want that you didn't think of while you were stalling there.
either way I have to get back to writing. things have finally died down in my life, so I just have to properly get back in the writing swing of things and locate all the info I need for the next chunk of my story.