I had a plain black leather Tula wallet from the age of 15 up until summer 2010 (about 15 years), a simple notes and cards affair. It had worn its way and when I was in Cyprus in 2010 I bought a marbled brown leather wallet.
It had one flaw, I got back to the UK and realised that it just held a £20 note and no more, it had been designed for Euros.
When I was in Italy last year I got a new black leather wallet, notes/cards and its the right size. Hopefully I'll get a good decade out of it at least.