When the raspy belch gurgling from your car's leaky exhaust is about to become the final slight pushing you at last into complete insanity, here's an easy way to make exhaust pipe holes the least of your worries involving an empty beer can and some ingenuity.
This is a lot like JT's super hacky oil pan repair, but using lightweight beer cans as your patch instead of pennies. Using pennies is great, but if you're a real cheap bastard like me, the thought of sacrificing money, no matter the denomination, to fix something is abominable. That's where beer cans come in. You were going to drink that beer anyway (or already drank it). Plus, if you mess something up and get frustrated, you can drink more beer to calm your nerves. That also gives you more available patch material.