Thrift stores can be great. The other day, I saw a nice great shape trench coat (lining included) made in USA probably from the 1970s for only $7.50. Sure, you'll look like your wearing your grandfather's coat but it will keep you warm. If you were down and out on your finances or just want to save up for that killer turntable, you can scrimp and save.
Rice and beans are cheap and what I eat a lot but truth be told, rice and beans do have health benefits too and I eat them whether I have money or not because they are so delicious.
Thrift stores are great but don't go over board and buy too much. You can get by on 2 pants and a couple shirts and one good coat and hat.
Cancel cable TV and internet connection. If you need to check your e mail, just bring your laptop or tablet to a free wi fi place. Read books from the public library too.
I've cut down on my drinking and for me, the cheap Australian wine is a good bargain at my local store,
It is possible to live a very minimal old fashioned life style and in some ways, the simpler life can lead to happiness.
Lastly, quit those cigarettes! It's obscene what it costs per year for a smoking habit. If you insist on smoking, roll your own cigarettes from loose tobacco bags or cans.