Through Buying and re-saleing

This is without a doubt one of the most profitable businesses that can be done by teens there is, but like some other ones mentioned in this blog, CAN be very difficult. It takes time to get used to it, but once you do you could be looking at $2000-3500 a month! One problem with this though is that (in this case) you have to have money, to make money. Of course if you play your cards right you dont have to have much and you could have high profits. Here's some tips on doing well

1. Always put items up for auction
2. Research the item before buying/selling it 
3. Buy items at liquidation sales as much as possible
4. Buy in bulk
5. NEVER and i mean NEVER buy well known items such as ipods, ipads, guitars, etc. beacause they will never sell or atleast not cheaply (this is a very common mistake)