Me thinks it's a fine line between acquiring two of the same cards on accident to doing the same thing on purpose. Maybe should be called a slippery slope instead...
Just this week I bought a card I already had because I didn't write down all the ones I previously had...now I can write it down with a 2X next to it...but then all the others will look "slightly off" in my twisted mind...so I might have to buy more of them to even it up...
I have CDO....that's the same as OCD but with the letters in the correct order