As mentioned here and here, I've been using Scrivener to write a first draft
and while I love the program for many reasons,
I got caught up in my chapters being (easily accessible) separate files
and so never printed out anything.
As a result, I got a wee bit confused on plot issues
and came to a screeching halt when I felt overwhelmed by the whole process.
This past weekend I printed out all I'd written and read it again.
Hard copies are awesome.
And absolutely vital to the writing process.
What she said!