time and time again the trusty pomodoro philosophy is the most effective. just commit to ten minutes. just ten minutes. the act of starting blows away all your uncertainties.
here's a tip for you: because twitter will delete your account if you deactivate it for more than a month, you can use a strong password generator to lock yourself out of the account to try taking a break.
That was the difference for me, too. If I took notes at all it wasn't in one place (a mix of text files and iOS notes for me). Switching to Byword and a single file was faster and I was more consistent about jotting notes down no matter where I was.
More importantly, I didn't have any habit for reviewing them. Hope it helps you like it helped me!
For me, it's org-mode in Emacs and git. Quick idea/note/todo capture combined with time logging, task management and calendar, not to mention the table features. Got it on phone and desktops/laptops.
On a slight tangent, I'm looking for something more touch screen appropriate that I can sync with git (must be text based, preferably compatible with org-mode). While I have Emacs, org-mode and git on the current phone with a hardware keyboard, that won't last forever, and I really need something that makes for very quick idea capture on a touchscreen. Bonus points for something that also tracks/logs time, manages todos and calendars (ideally, I suppose it would be org-mode optimized for a touch screen).
EDIT: Yes, I know about MobileOrg (http://orgmode.org/manual/MobileOrg.html) and while it's close (oh, so close), it's not quite close enough (notably, it's lacking logging of time spent on tasks). Although, since it is open source . . .
it's the damn weekend that screws up these good routines though (curse you leisure!). one thing that could help is to give up drinking, then you wouldn't have to sleep in as much.