Related Clues:

• Cousin of FWIW
• Texter's 'Oh, yeah ...'
• "To" on a memo
• Mail routing letters
• Start of a modern afterthought
• "Incidentally," to a texter
• 'Incidentally...' in a text message
• Abbr. before a colon and a name
• Name preceder on some envs
• 'As an aside ...,' in a text
• Letters on an envelope addressed to a company
• Letters facilitating sorting
• Letter heading abbr
• Memo heading abbr
• Abbr. often capitalized on envelopes