One of the things you may need to do is sell gold you've collected for years. It's important to get the absolute most from your efforts and knowing the right things to do can help. The key to earning the most from your sale of gold is to put these tried and true tips to work. 1. Find a reputable buyer The first task you'll want to do is to ensure the buyer you're taking the gold to is one you can count on for giving you a good price.