You might know most of these, but chances are you don’t know all of them. I didn’t.
My favorite:
Most people probably type a number or a symbol by tapping the 123 button, tapping the number or symbol you want to type, and then tapping 123 again to go back to the letter keyboard. But there’s a much faster way. Instead, touch the 123 key and hold your finger down on the screen. Without lifting your finger, move it to the symbol or number you want to type and then lift it from the screen.
This trick also works for the Shift key — touch your finger to the Shift key, move it to a letter, and you’ll quickly get the appropriate capital letter.
Nice!