You can use Primer & Driver only around your workouts on workout days, and then use a cheaper alternative for use with meals. One bottle or Primer and one bottle of Driver will last over two months if used 3 times per week with your workouts.
If money is really tight, buy some cheap whey from a big company (or small company if you know they are legit). Then drink it with meals. This will slow down the absorption and increase its usefullness outside of your workouts.
On a side note, I am really really trying to find ways to make Primer & Driver more affordable. After all, I too was raised on a pretty tight supplement budget. I have something in mind, but it may take a few months to get it off the ground.