There are already hundreds of glitches out there for Grand Theft Auto 5 Online, but most of them are useless. Most of them don't do anything to benefit your gameplay, but they're still pretty fun to mess around with. One such glitch, shown off by YouTuber AquibTV below, lets you inside any building in Los Santos. Los Santos is a big ass city and there are tons of buildings that you cannot get into without using a glitch like this one.
AquibTV uses the Beach Bum Bravado Paradise, but you can probably use any vehicle that allows you to get in the back.
You'll need a friend to drive, so make sure to invite someone willing to ride around the city crashing into buildings. All you need to do is get in the back of the van and have your friend reverse into a building or house.
Right before you hit the wall, press Y on Xbox or Triangle on PlayStation. Doing this with the correct timing should launch you into the building. This glitch is more useful for places that actually have stuff inside of them, but it will work on pretty much anything.