Unlimited Caps Xp Glitch:

Go to any vendor make sure they have two of the same weapons. Buy the one with lowest price. Check on your side on your weapons example if the vendor selling it 80 caps. Maybe get 200 caps back. Check on weapons on that same weapon you bought. Sell it back to them. Check how much they want for it. You will gain extra caps with another glitch with scrap metal. Have an even 2 of scrap metal. If I was you, I would save up 284 scrap metals. Go to fort Independence and talk to proctor chasm. He would give you a job to trade old tech but he'll take the scrap metal. He'll take two at a time. Sell all the scrap metal. If give them 2 scrap metals you'll get a free item such as rad away frag grenade stim packs give them all the scrap metal save your game, use a stealth boy and steal scrap metal back. It'll take trial and error. Just load the game back if you do it correctly but give him the scrap metal again but leave 2 in your inventory. Save your game again but try to steal his gun. You will be caught but there will be an invisible scrap metal in inventory. He will take the scrap metal back. It would only say 282 scrap. A message will pop up saying metal was taking back 282 scrap metals. Come back and there will be no scrap metal in your inventory but really there is indivisible scrap metal. It might not be in your inventory but it's there. Try talking to him again about give me some scrap metal and it says 2 scrap metal was taken out. Also go back to megaton and talk to Walter the guy who runs the water plant. Trade him some scrap metal. If I was you trade all scrap metal. You will get caps and xp. You could do it as many times as you want but and the remaining of the game don't pick any more scrap metal up it will it will ruin the glitch. The glitch will reset if you get Walter all the scrap metal. You can level up faster in minutes, lol. It will work.