I just wanted to add a comment about a solution I have found that is pretty cool. You may or may not be familiar with side loader deck boxes made by ultra-pro fro Magic the Gathering, they are perfect for the put FFG half sized cards in. I scanned all the hero ability cards into my computer and print them out. I have them sorted in a note book for perusal. It makes hero selection awesome as you can look at all the abilities before you decide and the ones you don’t pick can be left in the box.
These are the deck boxes I am talking about.
I use these to store all my FFG half sized cards. Works with the FFG sleeves as well.
You can also keep the merchant deck and others in their respective deck boxes as you play and just draw from the box. Keeps them from getting messy on the table, especially if you sleeve them.