Using the Text Replacement feature in iOS to speed-up text entry
Texting shortcuts are easy to add on your iPad and iPhone. For example, lol. You can do this so that it automatically replaces the letters with the word. Example, lol will automatically change to laugh out loud. To do this go to Settings > General > Keyboard > Shortcuts. On my way! This is your default shortcut. You can add more shortcuts by tapping Add.
Examples: HAGS, TTYL, BRB, BFN, and more!
I use this feature a lot. All words like couldn't and wouldn't can be entered without the apostrophe I need only type the first three numbers of my address or credit card or the first few letters of my email adress. Name combos like Rose and Brad require only typing rab.
Really useful isn't it.