What is the cheapest way to enjoy the whole variety of coffees from around the world?
Boca Java is currently the only coffee vendor I know of –online or brick and mortar- that sells sample packs of coffee for single-pot brewing. Check out their samplers and their baskets of samplers which let you order a great variety of international coffees in one order. Each sampler is sealed so they will not go stale while you start your journey through the world of coffee.