During the week while I am at school I usually will wake up 5 am on Wednesdays, to run with my neighbor. I don't even have class till 5 pm but I get up and run. It really clears my mind up and starts the day off right. I usually will run on Saturdays or Sundays depending on my schedule, I always try to run 3 or 4 times a week but sometimes I cant.
Sunday - Thursday I will do push ups and some core exercises, like planks and etc to work the core. To make sure I do it, I X off that day and write the number of pushups I did, so I can see how I am doing at the end of the week and to check my progress.
I am now buying fruits and veggies and making salads for my lunches for each day of the week, I usually will prepare them at the beginning of the week to make it easy as throwing tuna into the salad and leaving for class.
It is basically the same thing a lot of people have said, at first it seems like a hassle but now I am in the routine and its nice. I love feeling good and eating well. The hardest part was starting though, I was out of shape and it sucked but it has gotten a lot easier.