The first step to battling summer sweat is to acknowledge that it's a problem. Once you recognize and embrace that you're a sweaty bastard, you can start taking the necessary steps to both combat and disguise your leaky ways. If you follow these tips and methods, then news of pending heat waves won't have you shivering with fear and losing sleep over anxiety.
Some of these are minor tweaks on things you might already be doing. Others involve complicated science that doesn't really make sense to us, except that we know it works. If you're tired of always bringing a second shirt with you to get rid of sweat marks, read up on How to Battle Summer Sweat.