Much as you’d like, it doesn’t always work out the way you planned. Those carved-out stretches of time to plunge into the deep end of a project that’s been tapping, tapping, waiting, are suddenly filled in with More Important Things, and the pushed-aside project has to tap and wait some more (again). And your sighs become deeper and (maybe) your brow more furrowed.
Then, you remember. This is when you switch to bit by bit.