There are several ways for finding time to study outside alloted study leave.
1) Going to work early extra early to put in an hour of studying. Several of my mates do this (I can't, I try to sleep for as long as I can before waking up to go to work).
2) Those same mates mates also order their new notes 3-4 weeks (very little break) after they have written their exam and start studying for that exam, so by the time the results for the previous exam arrives, they would have completed the initial reading for the new subject (I'm a sucker for this too, I take far too long a break, about 2 months, before thinking about my next exam).
I think if we follow (1) 60-80% of the time, and follow (2) as best we can, we'll do orite...