This DIY tip is not for the risk-averse. If you have a small plane, and for some reason, that plane needs slight repairs, you can actually use duct tape to make some repairs before takeoff. Duct tape should be strong enough to get you to where you need to go. However, maybe don't let your passengers see you patching up your plane with duct tape as it's not really a confidence booster.
Also, make sure to get actual repairs done when you land as duct tape is strong, but we wouldn't recommend using it for more than one flight at a time.