So, since we all seem to like doing these kind of things, and have been talking about writing, reading, etc -I'm forwarding a link. This is a "Vocabulary Test" - which came to me from Thrillist. Anyhow, the test seems to be a reasonably valid thing, only took a few minutes - it's in a couple of stages to do, depends upon you answering honestly - checking words for which you know at least one definition (not just it seems familiar). At the end there is a very brief survey about your age, education, native language
-and then gives you an estimate of your English vocabulary, as well as what the estimate for the average English speaker in the US is.
Some good words, too. No address, personal info asked for.