Just something I've thought about. Some people spell it Gray, some people spell it Grey. I are confuzzled.
For uni and official stuff, I spell it gray. However, it can be either gray or grey, but in uni, some profs are really picky so I had to get in the habit of doing it their way.
But they're pronounced the same way DX Now I spell it gray always, since we're supposed to stick to either American- or British-English in our exams/essays. I didn't really care about the spelling in elementary and middle school though.