I don’t have many, but the ones I do have I use often.
I have “email” for my email address since it’s long, and I use it to sign into every thing.
“Addy” is my address.
“Lol” expands to Laugh out loud! Because my much younger sister told me a long time ago that I couldn’t use lol and I told her my generation invented it, and I made it to annoy her and never got rid of it.