Trimming decks

[Nemia]

I have trimmed a number of decks, and I have had very good results with tailor's scissors. They're very sharp and large enough to trim the whole length of the card in one go. All you need is a steady hand. It's not for perfectionists, though. 

 

[Raggydoll]

I have successfully trimmed several decks with scissors too. The one downside - it takes a very long time and is really hard on your hands.