money money money

seems like today everything is so expensive, its been driving me crazy, all i can think about is how much i am not saving and how much i have to work to just stay afloat. gas prices are simply rediculous and for some reason i always seem to want to buy stuff i dont need. ugh its annoying and things today are way overpriced its not even funny. i need some tips on how to save money. and tips on where to sell stuff that i dont need anymore. like clothes, electronics. does anyone know of any places or site i can put stuff up for sale, like cameras, clothes, shoes etc? i need to make some money and get rid of stuff that is new that ive never even used. :]