Nokia 5110 (Number 6?)
This was purchased after I made a trip to Crystal palace for a midweek FA Cup replay. Got to the ground and couldn't find my wallet. I'd driven for 5 hours to get there, spent 15 seconds inside the ground before coming outside to try find a callbox to phone home. When I did, my wife (now ex) said my wallet wasn't there. Headed to South Norwood cop shop to report the loss of all credit cards etc. Drove home hoping my last £10 would cover my petrol costs, got home after another 5 hour drive to find the wallet on the window sill next to the house phone. The marriage lasted another 4 seasons after that...