1.) Co-habitation (if bearable). I live with my parents and save $7-8K a year on rent. They don't charge me and know I've been saving up. This can be a huge boon financially, but it comes with relationship costs and isn't for everyone. Will your parents really let you live with them? Is it bearable? If there is an argument, what happens?
It's not ideal, but many do it to save money or even out of necessity.
3.) Use a space heater and fan vs. turning on your entire home/unit AC/heater.
3. Cheapen Your Car: Aim for a older vehicle with low mileage. Though the car you purchase is not worth of value at all or in many cases, you'll be paying for MORE than the Black Book value, you aim for longevity and Cost Per Use, plus lower insurance rates as well.
Stop buying lottery tickets. Powerball, scratch offs, whatever they are. Chances are, will never win enough to exceed or even meet your lifetime expenditure on these. I will never understand how people on a low/fixed income spend $20-50 on this crap as soon as their, "Check comes in." I have heard so much of this at gas stations over the years.