Instructions
Do your homework. As with any other collection community, pogs have their own value system and terminology. You should know the difference between regular cardboard pogs and metal "slammers." You should also be familiar with international pogs, which are more rare and valuable than American-made pogs.
Start with a basic collection. You can buy pogs at most toy and hobby stores. Since pogs are fairly cheap, you can easily start a modest collection without spending much time or money. So get yourself some introductory pogs and metal slammers to found your collection.
Start trading. Pogs were meant to be traded as much as they were meant to be played. Some pog collectors have never even played a game of pogs, but instead engage in relentless trading activity with other pog collectors. Hook up with other pog enthusiasts to start making advantageous trades to enhance or enlarge your collection.
Buy pogs regularly. The best way to start a solid pog collection is to start collecting consistently. You don't need to go out and buy thousands of pogs but, rather, buy a set number of pogs per week or month to reach achievable goals.
Buy someone else's collection. The pog fad of the 1990s resulted in thousands of teenage boys starting collections of pogs that they never really wanted in the first place. For the true pog collector, this is a windfall. Check online markets like eBay or Craigslist to snap up unwanted collections for extremely good prices.