I find that one of the biggest things towards determining my level of productivity is really related towards the time of day that I'm working.
That is I find that my most product times during the day are mid mornings and late at evening when trying to write code.
So I try to ensure that this time is free for doing the nitty gritty stuff, and I ensure that I make meetings and whatnot for the afternoon.
Thats just for me personally though, the best way for you to ensure you're productive is just to try different things and figure out what works for you - and then capitalise on it.
That is I find that my most product times during the day are mid mornings and late at evening when trying to write code.
So I try to ensure that this time is free for doing the nitty gritty stuff, and I ensure that I make meetings and whatnot for the afternoon.
Thats just for me personally though, the best way for you to ensure you're productive is just to try different things and figure out what works for you - and then capitalise on it.