Briefly, then it gets undone and left undone for a good while.
List making is the best option I've found so far but I still have issues with staying on track. It's the middle of my work day right now and here I am.
I give myself 90 minutes (or more, if I am lucky enough to get into "the zone") and then 30 minutes to farf off. Repeat. I don't often go to the office, so this usually continues for well over the 8 hours of work-time they pay me for.
(I also heavily use lists)