A little late, but I got a new, somewhat short block up! As you'll see toward the end of this lesson, some double negatives are fine to use, e'er'body! =D
Thank you, MaidLatte and Mathemagician, for your suggestions and support! I neglected to cover irregardless, but that word really, in the words of Peter Griffin, grinds my gears. I myself almost used it once, but I looked it up and found to my dismay that it's not a legitimate word but a hideous (and illogical!) portmanteau of regardless and irrespective, both of which are perfectly usable.