We have no dryer, with two preschoolers and a baby. I agree, dont use coupons! No fast food, no eating out. We got internet last month for the first time in a long while. No cable, no phone service. We have prepaid verizon phones, because Hubby has to have a cell phone for work. (And everyone we know has verizon, so it is free to call them.) He's a truck driver.
We have lived off of nothing (literally) for an amazingly long time.
You can get by with a lot less then you think you can.
Hunt. Grow food. Don't buy ground beef, buy ground turkey. No chips, cookies, pop, bottled water, boxed food, etc.
Make your own everything-laundry detergent, mixes for cake and pancakes. Stay home whenever you can so you dont have to drive, consolidate trips so you can do everything at one time. Get rid off extra vehicles if you can, insurance adds up fast.
Buy garage sale stuff, use hand me downs, etc.