Exactly!!!
What I find myself doing is preparing tasks (mental or physical), so that if the spirit moves me, everything's ready to go.
For instance, I have been in serious need of an office/file clean up/organization.
1st step was make a giant pile of stuff in the middle of the office floor (Home office).
2 days later I've put a solid 5 hours toward the task in total.
The pile in the office is almost gone, now I have a mountain of garbage!!!