Collecting STUFF. We all do it in some way or another but collecting passport stamps as a pursuit in itself, rather than incidentals that just happen from time to time always veers a bit close to braggadocio for me. Nevertheless just as train and car number plates fascinate some people, so do passport stamps. It takes all sorts ! (I have to admit my own peccadillo is collecting CAA airport significator codes – LHR, DEL, MCW etc).