I pray for a cheese every game. So satisfying to stop the cheese and then draw out the game really long ending in an eventual crushing victory. On 1v1 maps like Steppes/Xel Naga have your scouting worker check every inch of your base + natural for proxy before heading out to his base. On maps other than Steppes/Xel Naga you have to always be watching for a worker scouting earlier than normal (if they dart in and out of your base real fast without looking around that means they are most likely doing some sort of proxy cannon/rax/gate etc. For example,
For example in this replay the SCV came into my base way way too early for a normal terran build and left immediately so I knew something was up. Checked the natural and he was popping up a rax behind my naturals mineral line. If you watch the replay you'll notice that I somehow missed his base when scouting which led me to think he had lifted off to an island. I took time to build the wrong units which allowed him back in the game but I still ended up crushing him.