Wow... interesting question! Lemme see... • SMS • Personal Email (account 1) • Personal Email (account 2) • Craigslist (email response, using CL's email shrouding function) • Chat function in "Words With Friends" game app • Chat function in "Pokerist" game app • Work email 1 • Work email 2 • Slack (for work) • Hubski • Reddit • Facebook • online motorcyclist forum • Comments in a GoogleDoc being edited simultaneously by 3 people • Cell phone call • Cell phone voicemail • Face to Face (work, home, motorcycle buyer, mail man) I think that might be it.
Fortunately the Mac is VERY good at finding things. So if I do get confused, I simply type Command-Space Bar, and type in what I am looking for. The Mac then leads me right to it, even if it is buried in a PDF file 15 folders deep... But generally, each of those communication media are used for different purposes. So I don't tend to get confused.