The best and simplest way to mark and celebrate National Grammar Day is to savor a traditional martini, a grammartini.
Gin or (if you must) vodka. Straight up or on the rocks. Olive or lemon peel. Four to one, five to one, or six to one. (But if you go eight to one or higher, you might as well take your gin neat.) No need for dogmatism; this is America.
For anyone requiring instruction, this traditional video should suffice.