Many stamp companies advertise free stamps. However, these ads must be read carefully before you send away for anything. By sending for the free stamps, you have already agreed that you will return the other stamps within a reasonable period of time if you do not buy anything. Usually you must pay the return postage. This is a convenient way to buy from your own home.
Stamp clubs are another place to get stamps.
A club may offer stamps as prizes, or have inexpensive stamps you can afford to buy. Some stamp clubs sponsor junior clubs that meet at schools or the local YMCA or community center. If you are fortunate enough to have one of these in your area, it can be a great source of both stamps and advice. One way to increase your sources for stamps and also have a lot of fun is to help start a local club, if one does not already exist. All it takes are four or five other stamp collectors who are interested in getting together to learn about and trade stamps and ideas.