If you need some new gear in Borderlands: The Pre-Sequel, one solution is to redeem SHiFT Codes. These Codes allow you to get Purple quality items for your character.
In order to redeem these codes, you first need to reach main town of Concordia. You'll be able to visit Concordia after a few opening missions in the campaign. Here you'll find a Shift Code Kiosk where you can input these codes. Alternately, you can enter them through the Options menu.
Most SHiFT codes will award you one or more Golden Keys, which you can also pick up at the Kiosk. The keys allow you to unlock the loot chest to the north, near Moxxi's bar and Springs' shop. Each time you open the chest with a Key, you'll get up to four weapons or shields of purple quality. They'll be either your character's level or one level above.
Occasionally SHiFT codes will give you something other than Keys, though. Gearbox gave out character skins, mods and other items as rewards for Borderlands 2. It's likely they'll do the same for The Pre-Sequel in the months ahead.
"If you save them for when you are a higher level, you will get more powerful weapons," Gearbox explains on their forum. "However, using them early will help you level faster until you find a legendary."
These codes will often expire a matter of days after they're released. Others will expire once an (unknown) amount of players redeem them. Keys in your inventory won't expire, though, so you can redeem codes as soon as they're released and then hang onto them as long as you want.
Here's the current list of active SHiFT codes, broken down by platform. We'll remove old codes once they expire or add new ones as they're announced:
Gearbox CEO Randy Pitchford's Twitter account: https://twitter.com/DuvalMagic
Gearbox's Twitter: https://twitter.com/GearboxSoftware
Borderlands's Twitter: https://twitter.com/Borderlands
Youtube channel for Gearbox: https://www.youtube.com/user/gearboxsoftware
Borderlands on Facebook: https://www.facebook.com/borderlandsgame
Gearbox on Facebook: https://www.facebook.com/GearboxSoftware
Gearbox Software Forums: http://forums.gearboxsoftware.com/
Gearbox will distribute codes through other sites on occasion as well. No matter what the source is, we'll keep posting them here.