You're not a perfectionist. You just can't stop looking for (and finding and suggesting) ways to make things (and people and life) better. Oh, how much more wonderful the world might be if Virgos decided more things!
Luckily, you're also super sly... so you have a knack for making people think your brilliant suggestions are really their own great ideas. You can use your mind powers in just about any situation. But because you are so practical, you probably don't.
Instead of telling people how things are best done, show them. They won't be able to help agreeing!