Drum brake upgrade

Guys, I apologize in advance if I missed anything already discussed but I didn't find anything to answer my question other than MAJOR upgrades.

I have a 70 Dart "swinger" I say "Swinger" because it started life as a basic /6 car that someone P.O. cloned. Anyways, it has the small drums all around. I am on a VERY tight budget (bloody wife and kids wanna eat occasionally!) so I am wondering what (if anything) can be done to upgrade the performance of the brakes on the cheap? I relaize I need to go through them with a fine tooth comb but while I am tearing into them I am wondering what I may be able to add or tweak to imporove the performance.

Sure eventually I would love to convert to discs but as I said it isn't in the cards right now. Not expecting the thing to stop on a dime but perhaps on a football field would be good!

Thoughts and suggestions anyone?

Dennis