Run or Revise?

Now that I am back in uni' and studies are becoming increasingly important, it begs the question what is more important? Running or revision? Only kidding, I know that running has to play second fiddle. It is difficult sometimes though to sit in front of a monitor and do some obscure calculations for my BSc but it may prove to be lucrative in the future. So, to that end I am managing to juggle things around and get out on my runs. In fact whilst I am out and about, it allows me time to think and come up with answers ....... I am sure that there are a million of you out there with the same problem, to run or not to run....? But the difficulty is this....OK yes, it is easy to get out for 45 minutes or even an hour, but what if I want to run up in Snowdonia and on to the Glyders....you have a 30 minute drive, then the 1 hour run you were going to do turns into three hours, because you just can't resist the scenery, the climbs, the fresh air etc etc etc.......I know what I can do....I'll get NeeNee, to drive me there....so I can revise on the way!!! Sorted.......