This forum is quite a learning curve is some respects, certainly for me when it comes to common abbreviations.

These are the ones I have collected so far. Please feel free to add new ones.

It's strange or funny because I work in IT where we adore our TLAs (Three Letter Abbreviations).

CFC = Condemned Food Counter – our affectionate term for supermarket discounted items counters

OH = other half

DH = dear husband

DD = dear daughter

DS = dear son

PB = posh boy (me and SOL's OH )

S.O.L. = Slice Of Life

TG = thank God

IMO = in my opinion

BTW = by the way

AFAIK = as far as I know

BS = Bright Spark (the atriste formerly known as brightsprite)

TA = Toffeeapple

*? = people from Devon

OK, the last three above  are (a bit) jokey!

RTFM – read  the flippin manual (from Bobquail)

JFGI:  Just flippin google it (from Ruth)

IIRC – If I remember correctly (from Toffeeapple)

IMHO – in my humble opinion (which is rarely humble if you ask me) ( Joanna)
LOL – laugh our loud ( from Joanna)
ROFL – roll on the floor laughing Cheers (from Joanna)

. . and these (dubious) offerings from BS (Bright Spark):
AICMFP – And I Claim My Five Pounds
EVOO – Extra Virgin Olive Oil
ITIWTB – It's time I went to bed

SAHM - Stay at home mum/mom