I had a phone call from a chap this afternoon who still had my mobile phone number from a talk I gave to a motorcycle group 5 or 6 years ago and now wanted my help after a bad crash
He had my old business card in front of him
He has sustained some horrific injuries.
Anyway, the point I was that I find amazing is how long people hang onto contact details for.
Unless I put them on my system within 48 hours or so, I can usualy guarantee that they are lost for an eternity.