Also:tldr, iirc, tbqh, tl;dr, afaik, tbqhntymi, tbqhntymif, afaict

afaict: as far as I can tell
afaik: as far as I know
iirc: if I recall correctly
tbqh: to be quite honest
tbqhntymi: to be quite honest now that you mention it
tbqhntymif: to be quite honest now that you mention it, fam
tldr/tl;dr: too long, didn't read