For more on ALL RIGHT, ALL READY and ALL TOGETHER, see Grammar Girl. The slang term “alright” is always slang.
The Alot is an imaginary creature that I made up to help me deal with my compulsive need to correct other people’s grammar. It kind of looks like a cross between a bear, a yak and a pug, and it has provided hours of entertainment for me in a situation where I’d normally be left feeling angry and disillusioned with the world. For example, when I read the sentence “I care about this alot,” this is what I imagine: via Hyperbole and a Half: The Alot is Better Than You at Everything.