Jory MacKay's How I Forgot to Write was a particularly personally hitting piece to read as my daily writing motivation. If we aren't careful we can let the skills we have wane and that is certainly something I think happened to me at some point in the last five years, and regaining those skills is a big part of what I'm doing NaNoWriMo.
The six-step program outlined is full of gems. Among the two that I hold most closely to my own writing: Find a routine and Learn to love editing. From these two the most important lines I'm carrying away today will help motivate me.
what matters is that you set a schedule and stick to it.and
Writing is editing.But, really, you should read the whole piece.
See all my posts about NaNoWriMo 2014