A Few Unethical Hacks

Submitted to Reddit by yourderek
"Not sure about all chain theaters but this is a sure bet at any AMC.
After buying a ticket and walking past the concessions, head to any trash can (stay with me here). Try to find an empty large soda cup and/or popcorn bag. Take this to the counter and ask for a free refill. They will take the old bag/cup and throw it out (thank God) and fill a new one, with "refill" repeating in bold around the rim.
They do this to prevent people from getting more than one refill, but it's a surefire way to grab free food in a super expensive theatre.
Another life hack: don't let your date see you do it."

Submitted to Reddit by justfortrees
"Got a broken windshield? Next time your driving and see a cement truck or any kind of truck carrying rocks or dirt follow it. Call the 1-800 number on the back and say a rock flew out and hit your windshield. Once they verify there was indeed a truck at that location there's a good chance they'll offer to replace your windshield for you."

Submitted to Reddit by sto-"
"When career hunting, flagging Craigslist posts as spam after applying, or taking down flyers for a position (like at a college campus). cuts down on the competition."

Submitted to Reddit by postfuturology
"When meeting someone, tell them you are twice as far away from them as you actually are, and are willing to meet halfway, I.e. a block away from where you currently are."

Submitted to Reddit by sto-
"When buying something on craigslist, I use my spam email to lowball the seller by a lot, then I use my regular email to give a reasonable offer that is still a good amount under the asking price. I almost always have my offer accepted."

Submitted to Reddit by ElectroKitten
"There's clothing that allows you to do virtually everything. Want to do graffiti? Wear one of those white paperish overalls. Steal a streetsign? Carry a toolbox, dress like a mechanic and you're good to go. Dress up like a technician, walk into an office, tell somebody you were "told to take that PC", you can just walk out with it. Never underestimate how little people question the uniform."

Submitted to Reddit by beef-curtains
"Want free admission to Six Flags? Tell them you are buying a season pass, but not staying in the park that day. They will ask for collateral, usually a credit or debit card. They will give you 30 minutes to come back, or they will charge your card the full price for admission. Walk into the park, walk around for a few minutes. When you leave the gate they stamp your hand with that awesome black light readable only re-entry stamp. Go get your collateral back from the ticket booth. Then you can walk right back up to the re-entry gate, show them your stamped hand, and viola! Free park admission!"

Submitted to Reddit by peppermintpattii
"This trick has helped me pass a good majority of my college courses.
Send out a mass email to the class the day before an exam saying I have just finished my study guide, and offer to swap it with other people.
Never actually made a study guide. People would send me theirs and I would them send them each others back. Win win for everyone."