The most common type of scroll is $10, so many of us have loads of them that we are selling or fp'ing. That's all well and good but they are the least valuable and cannot stack.
So I propose either making scrolls noteable or (maybe more interestingly), merging them together. So for example if you have 10 $10 scrolls you can make a $100 scroll to sell/fp meaning you could do much larger trades at once.