iTunes, iBooks, and App Store gift cards as well as app promo codes are all redeemed the same way. One of those ways is through iTunes on your Windows PC or Mac. If you've received a gift card or a promo code, you can fire up iTunes and redeem your card for store credit in just a matter of seconds.

That's all there is to it, you can now start looking for apps, books, and music to spend your iTunes credit on! If you regularly redeem iTunes or App Store gift cards, what method do you use? Do you use iTunes at all or do you prefer redeeming gift cards on your iPhone or iPad instead? Let me know in the comments!

Note: Originally published May 2013. Updated May 2014.