Stop Buying Stuff.
You can get all Zen about this or horrifyingly efficient, either way, it's pretty simple: if you want to make your money go further, stop bidding on stuff on eBay, stop picking up useless shit at Target, stop going to the store at ALL unless you have a list and you really need something.

Think of other people first.
If your purchase of something is going to impact someone or something in a negative way, don't do it.

Be thankful for what you've already got.
I grew up in a house where we had no money, in fact, I clearly remember digging out of dumpsters for food. My mom would leave us in the car and rummage through the Albertson's dumpster. Amazing what you can find there.

My point: most of us are FAR better off than we think we are (I know I am).