Misi 7 GTA: San Andreas

Girlfriend bonus glitch
If you have dated any one of the girlfrined who give you a bonus Such as Katie or Barbara and you restart the game you will still have the bonuses they give you even if your not dating them!!

Reveal complete San Andreas map
Simply get in a plane or helicopter, at any stage during the game, and fly outside the games boundaries. Once you reach water, fly towards the end of the map and simply keep going for a few minutues, and eventually the whole map of San Andreas is revealed! This is a very helpful glitch to exploit, as it doesn't affect anything negatively and the map will always be revealed; even after the game is saved!

Create A Fountain
Grab a boat and head out to some deep waters. Grab a satchel and throw it in the water. For some reason the 'splash' of the impact keeps on going so the water keeps spraying up.

Un-hitch trailer from big rigs using camera.
If you have a trailer attached to the Tanker, Line Runner or Road Train, and you no longer want it, get a camera.
Go into the camera's 1st person view by holding R1, then press O. You will hear the trailer un-hitch. You need to be near the truck, and in an area open enough for the trailer to move away from the truck without hitting, or getting caught in a wall or other object.
It's a lot easier than losing the truck trying to jack knife the trailer off.

Ghost Country
Thie glitch removes all peds (and cops if it's done right) and cars from the game. It's great to use to explore the territory. On the mission 'Small town bank' for Catalina, after you grab the bikes, you'll end up at the unique jump spot. Jump it, but miss and fall into the river below (It works if you don't get the slow animation for the jump too, but if you do get it, the cops shouldn't be on the map as well as the peds). After you land in the water, you'll see a floating trooper dead. I don't know why that's there. Swim to Fisher's lagoon and head back to Palomino Creek, were the bank is. Nothing will be there. No cars driving or spawned, and maybe no cops. The alarm at the bank will still be going off, and the only places you will find anyone will be in a store like The Well Stacked Pizza or Ammu-Nation. Entering then exiting those places will not bring back the peds or cars, and the only way to do that is to go and rescue Catalina from the police ambush and take her back to her hideout. However, you can do anything in between the glitch and rescuing her, as she will not be killed by the cops. Just spawn a jetpack or car with a cheat and explore. You can go cover tags and find the oysters and stuff like that without worry that cops or gangs will attack you. Occasionally a parked car will spawn, but they are kinda rare. When you go to rescue Catalina, shoot the surrounding cops with a rifle from far away, and you can pick them off easy, and no other ones will come. I don't know what happens if you die or kill Catalina, so you can try it if you like and tell me about it and I'll correct this.

Keep mask after the burglary missions are done.
Start the burglary missions and park infront of a barber shop. Enter said shop and walk into the red circle to take a seat. Press X to view a haircut and wait until the time expires. Once the mission has ended press triangle and the barber will "put" the mask back on you. Now you may leave the barber shop with the mask on your face. Note: You may not change your clothes or die/ get busted the mask will disappear.

Chillad Challenge Infinite Money Glitch
As soon as the race starts ignore all over cyclists just head straight for the wooden ramp at the end of the mountain top when you get there try and pull the insaniest stunt possible. Just as your about to hit the floor you will respawn where you origanally started and still claim the stunt bonus award.

Weapons other than SMGs w/ two players in a vehicle
First, find a two-player icon either around town or a a girlfriend's house. Now if you have a SMG, then waste the ammo for it. Pick a different weapon, like a shotgun or rifle. When the second person gets in the vehicle, input the weapon code that would give you the weapon you have selected. If done correctly, then the second player should be able to shoot whatever weapon was selected.

Taking Gang Territory: Fish In A Barrel
While trying to take over gang territory, take one of the datable girls with you. Between waves of enemy gang members, if you give your girlfriend a gift or kiss them, the enemy gang members will freeze in place. They won't notice you around them, but if you throw a grenade at them or otherwise threaten them, they'll un-freeze. Grab a rocket launcher or molotov and you can take over territory really easy. Also, this would give you a chance to get the health and armor pickups in the area without being shot at.