Three collections of acronyms:

AAMOF BF4E B4N BTW FM FC FWIW FYI FUA G2G IITYWTMWYBMAD IAE IANAL  IMO IMHO IMCO IOW LYWAMH NRN OTOH PITA ROFL RSN RTFM SNAFU SITD TANSTAAFL TIA TIC TLA TTYL WBASAP YMMV

As a matter of fact Best Friends For Ever Bye for now By the way Fine Magic Fingers Crossed For what it's worth For Your Information Frequently Used Acronyms Got To Go If I Tell You What This Means Will You Buy Me A Drink? In any event I Am Not A Lawyer, also IANA... such as CPA In my opinion In my humble opinion In my considered opinion In other words Love You With All My Heart No Reply Necessary On the other hand Pain in the butt Rolling on floor laughing Real Soon Now [which may be a long time coming] Read the Fine(?) manual Situation Normal: All [bleeped] Up Still in the dark There Ain't No Such Thing As A Free Lunch Thanks In Advance (also AtDhVaAnNkCsE) Tongue in cheek Three Letter Acronym (such as this) Talk To You Later Write Back As Soon As Possible Your Mileage May Vary

 

BYKT	but you knew that
CMIIW	correct me if I'm wrong
EOL	end of lecture
FAQ	frequently asked question(s)
FITB	fill in the blank
FWIW	for what it's worth
FYI	for your information
HTH	hope this helps
IAC	in any case
IAE	in any event
ICL	in Christian love
IMNSHO	in my not so humble opinion
IMO	in my opinion
LOL	lots of luck or laughing out loud
MGB	may God bless
MHOTY	my hat's off to you
NRN	no reply necessary
OIC	oh, I see
OTOH	on the other hand
ROF	rolling on the floor
ROFL	rolling on the floor laughing
ROTFL	rolling on the floor laughing
RSN	real soon now
SITD	still in the dark
TIA	thanks in advance
TIC	tongue in cheek
TTYL	talk to you later
TYVM	thank you very much
WYSIWYG	what you see is what you get
<G>	Grinning
<J>	Joking
<L>	Laughing
<S>	Smiling
<Y>	Yawning

BRB- Be Right Back