Related Clues:

• However, in a text
• Brief "However"
• "Oh, forgot 2 mention ..."
• "Just so you know" shorthand
• Short "While I'm thinking of it ... "
• "forgot 2 mention ..."
• "I should tell you," for short
• Conversely, briefly
• "Speaking of which," briefly
• Texter's "I wanted to mention ..."
• Texter's intro to an aside
• "Forgot 2 mention ..."
• Texting abbr. hidden in "zero to hero"
• Texting segue
• "However," in a 16-Down