Drink water. (Stop buying juices and soft drinks.) DONE. I drink milk and water, pretty much exclusively.
Cut back on extras. (One less dinner or movie out a month.) DONE. I eat out rarely, see movies even more rarely.
Purchase generic/store brand groceries. DONE. I always buy on sale, stock up, and try to use coupons.
Stretch out the time between haircuts. DONE. My last haircut was in August 2007. Boy, am I due!
Do your own nails. DONE. I’ve gotten my nails done once in my life: for my senior prom.
Spend less on clothes. DONE. I stock up at Old Navy twice a year, and spend about $150 each time.
Adjust your cable package. TRIED. They have a monopoly and won’t change our plan unless we cancel it completely. I’m thinking about it.
Compare insurance plans & increase your deductibles. I have the max deductible, and the minimum amount of coverage that is legal.

About these:
Refinancing your car loans.
Refinancing your student loans.
Reducing credit card rates.

I don’t have any debt.

what else is there to do except increase income?