TUTORIAL: 28 perks, infinite XP, infinite 9mm ammo, infinite leather armor.
While in Goodsprings, ONLY pick these perks. After you leave and rebuild your character, you can pick any perks you want, whether they're on this list or not.
THESE PERKS WILL STAY WHEN YOU REBUILD:
Action Boy/Girl
Adamantium Skeleton
Animal Friend
Better Criticals
Bloody Mess
Cannibal
Center of Mass
Chem Resistant
Chemist
Commando
Computer Whiz
Concentrated Fire
Cowboy
Demolition Expert
Explorer
Fast Metabolism
Ferocious Loyalty
Finesse
Fortune Finder
Ghastly Scavenger
Grim Reapers Sprint
Gunslinger
Hand Loader
Hit the Deck
Infiltrator
Jury Rigger
Laser Commander
Lead Belly
Life Giver
Light Step
Living Anatomy
Long Haul
Math Wrath
Meltdown
Miss Fortune
Mister Sandman
Mysterious Stranger
Nerd Rage!
Nerves of Steel
Night Person
Ninja
Nuka Chemist
Pack Rat
Paralyzing Palm
Piercing Strike
Plasma Spaz
Purifier
Pyromaniac
Quick Draw
Rad Absorption
Rad Resistance
Robotics Expert
Scrounger
Shotgun Surgeon
Silent Running
Slayer
Sniper
Solar Powered
Splash Damage
Spray 'n Pray
Stonewall
Super Slam
Terrifying Presence
The Professional
Toughness
Unstoppable Force
Vigilant Recycler
Weapon Handling
All perks at level 2, and level 4 will disappear, so:
For your first two perks while leveling up in Goodsprings, choose swift learner. This makes the infinite XP go a lot faster, and any other perks you choose will disappear anyways. After you're at level 6, pick whatever you want from the "will not disappear" list above.