What I focus on seems to stay alive. So if I am dealing with a 5 minute inertia, the best strategy for me is to not dwell on it.
To add to Peter's statement......'The only sure fire thing is to do nothing else than the thing I am avoiding -- not giving that 5 minutes a place to start, since how can I begin something I haven't stopped?'
When I focus on just Being, I tend to lose track of time in my ordinary life. I find that helps greatly. When I focus on Being in the moment, I just pick up my banjo and play it without much thought. In this way the 5 minute inertia starts to lose its grip on me and begins to fade away into oblivion.

Banjo Buddha Bonnie