Through the games I've played, even though they are not many I have found a recurrent problem in each one of them. Either I get too many useless things on mi inventory and/or my inventory is full before I even do my third quest. My inventory tends to get filled with lower level quest items that are worth close to nothing, or don't sell well because nobody does that ~boring quest~.

  In some games I even need to do a special inventory quest which is usually of royal pain proportions. I know that it would be too much to ask to have infinite inventory, but I wish we could have more useful items overall.

  In game design theory, dead squirrels are useless things that players carry in their inventories, which is something game designers should try to avoid. But apparently MMO developers didn't get the memo, because we have to struggle to get all the dead squirrels out of our way when we are trying desperately to find a health potion.

Wish list

  I wish I could do more with things inside games, for example if I have a rock, a string and a stick I could build a rough bow. But so far I haven't found a class that "Invents stuff".

  I wish I had a search function where I could type in the name of the Item and I can get exactly how many of X item do I have or if I have it or not.

  A checkbox for my inventory where I can put a check only on the things I want to pick up, just armor, just gold, just quest items and gold, etc..

  A special merchant cart that allows merchants to stack more materials to put for sale.

    I think my wish list is not that much impossible to achieve, it has features that every major software application has. But again we don't have a Search function when we look for something in our pockets right?  It depends because if we want realism, then we get basic functionality only, but if we want to have some gadgets to enhance our gaming experience, then why not?