True to the title and not the article, I actually went through this phase recently. I was interviewing for a new job that I was excited about getting. I purposefully never got my hopes up, but towards the end I knew I was going to get the job.
I went into 2 weeks notice mode. I started getting stuff done that I put off doing. I finished stuff that were on my list of to-dos for years. I was extremely productive. Felt amazing, and that feeling has continued on and I’ve continued to be more productive than I ever have. I got out of my rut.
Force yourself into the mindset that you only have 30 days left to get things done. It may work wonders for your productivity.