metalgeek

Sounds bad in a way, but move to a developing country for 6 months, and then move home.
You'd be amazed at what you learn about how you live, and what you require to live.
If your one person, do you need a 800 sq ft flat? or even 2 people? you can get by quite nicely with something MUCH smaller.
Do you by a coffee every day? a grande star bucks plain coffee of the day costs 1.70 CDN. Let's say you can brew your own for 70c a cup (probanbly a rather high estimate) thats 365 bucks a year, or almost a months rent (if you live someplace with sane housing prices)
Looking to rent? look for duplexes or fourplexes, often they go cheaper than equivilent apartments.
Look at living in a central area of town and getting rid of your car, rather than the outskirts. Even if your rents 100$ extra a month, you still save vs. a car.
buy a freezer and buy bulk.
If you do have a bigger freezer, look into buying a half or quarter cow. (you might have to ask around, or go to a farmers market) Your cost for meat will drop DRASTICALLY. in addition, if you ask around, you might be able to find more organic cattle than in the store. (steroids, feed, not feed lot fed, etc.) they also often do pork and chicken as well.
If you live in a more rural area, look at buying things from the mennonites/huderites/ other rural cristian sects.