Do you know that when you type in Word/Excel etc. if you misspell or have poor grammar a little red (spelling) or green (grammar) line will appear underneath. Right-click the line and it’ll give you a suggestion, so you don’t have to go look it up!
A new, FREE app is also available to do the same thing for your emails called Grammarly. It’s a slick tool for editing while you’re typing online.
Update: I uninstalled this on my computer because I found it made my websites slower and jump around a bit.