A myriad of things make my head feel like exploding...

...and the usage of the word "myriad" in the title of this blog post is one of them. This one is very simple. The word "myriad" is synonymous with "many." You wouldn't say "I have a many of hobbies," would you? No. You wouldn't. You would say "I have many hobbies." Likewise, you would say "There are myriad grammar errors perpetrated on mankind."