How to buy tokens without charges?

In the world of cryptocurrency and finance, one of the most common inquiries is how to acquire tokens without incurring additional charges. For investors and enthusiasts alike, minimizing costs while acquiring digital assets is a top priority. Could you elaborate on the various methods and strategies that one could employ to purchase tokens without paying additional fees? Are there any specific platforms or exchanges that offer fee-free token transactions? Furthermore, what are some potential risks or caveats to be mindful of while attempting to transact without incurring additional charges? I'd greatly appreciate your insights into this matter.