After you add an addressed envelope to your order, you can save it to your address book for future use. Say what! That’s right - No need to handwrite or type them one-by-one ever again…well unless if that person moves. This means you can spend less time writing addresses, and more time laughing at hilarious cat videos on the internet. Tap the address icon at the top of the envelope screen to add any of your saved, handwritten addresses to your order. Coming soon for Android.