WordPress Speed Up Service | WordPress Website Maintenance Packages What makes a professional writer professional is their lack of grammatical mistakes. Most of us though have things that we just can't get the hang of for some reason. Like "its" and it's". Or spelling issues like "receive" and "recieve" What's the one thing that you just can't seem to remember how to do correctly? With me it's the numbers thing. Do you write out one though ten and number the rest, like 15 or 30? Or is it the other way around?