Very short method but I know it works from experience... Grab about $30 to invest into some clothing at your local Goodwill / Salvation Army. Find some clothing for a cheap price... you will have to do some digging to find popular brands but if you look hard enough you will find name brand items such as American Eagle, band / artist apparel, etc. The best type of stores to go to is the ones that charge by the pound ($3 / lb of clothes) but any will suffice if the clothing is cheap. I usually try to aim for shirts in the $2-2.50 range and pants $5-8. Now go to eBay and list your items... Don't mark your products up extremely high but just enough to make some money. I usually have a Buy It Now on the items double what the cost I got it for so $2.50 I would have the BIN at $5.00 + shipping. As long as you have decent items that are popular then you will make sales. For example I purchased a Bob Marley t-shirt from Goodwill for $2.25 and was able to sell the product on eBay for $9 after shipping. The shipping cost me $1.50 for the shirt so I had a total of $3.75 into the item and made a profit of $5.25. This is not a get rich quick method nor do I think you will make a shit load unless you have tons of stores locally that have donations regularly but its a very easy way to make $100-200 extra a month.