Garbage Pail Kids were a hit in the 1980s and have recently made a comeback. There is a huge collectible market for the cards, so whether you're a serious collector or just found a few cards in a drawer, you shouldn't have any trouble selling your Garbage Pail Kids cards.
Take stock of what cards you want to keep and what you want to sell. Some cards, such as Nasty Nick or Adam Bomb, will bring more money than others.
Grade your Garbage Pail Kids cards. If you're looking to make a lot of money, consider having the cards professionally graded. There will be a cost for the evaluation, but you will be able to sell the cards for a higher price.
Check the centering of your cards. A card in mint condition is perfectly centered. The more off-center the card is, the less you can charge.
Look at the corners of the cards. Badly worn corners bring down the price of the card, while corners with little wear sell for higher prices.
Examine the Garbage Pail Kids cards for creases and flaws. Cards that are in crisp condition are worth more.
Find a buyer. Search websites like Wayne's Garbage Pail Kids References to see what serious collectors are looking to purchase. Also consider auctioning your cards on eBay.