Och inaclearing it's so hard isn't it. Spartacus is right- pop the tin away somewhere that you won't see it all the time but can take it out to look at when you want to.
We kept our Juno's collar and bowl in a little drawer in the kitchen, sometimes I look at them. The hard one is her christmas present. She was run over on christmas eve and this being our first year together with pets DP and I had got excited and wrapped up a little stocking of cat toys for each of the cats- pure silliness but it seemed like fun. Juno's present is still wrapped up at the bottom of a drawer and we don't know what to do with it 
In happier news kitten Maisie was at the vets today and apparently flirted with everyone before climbing into the very newly graduated vet's handbag and stealing a tampon 
she's re-booked in to get spayed once the full time vet gets back from sick leave (that's if we're allowed back after today!!)