I collect Cufflinks - what do you forget when you travel?
 

I always forget to bring cufflinks with me, and always end up purchasing a set someplace when I have to wear a shirt that requires them, and it's not one of the ones I've put back up bottons on.

What do you end up purchasing all the time because you keep forgetting it?

I collect Travel Adaptors !
 

Every time that I seem to go anywhere outside the UK I always have to buy a travel adaptor at the airport !

I have now got loads and loads of them which stay safely at home in the drawer.

Thought that I was being really clever last year and just remembered one in time for a trip to Tuscany. When I got to where I was staying, the first time I wanted to dry my hair, I realised that it was the one that I had bought at the airport when I went to New Zealand six months before ! It obviously was useless and off I went to buy another one !

Gillette razors. Mach III, Senor (all models). I have a ton of them