I have a suggestion/request for the ingredients tab.
Right now, it is very tedious to cycle through all the ingredients and check which one you use the most. It would be nice to have that information right away on the ingredient itself, without having to click it.
That would make it much easier to know which ingredients to upgrade, without having to click on them and then hovering over the circle to know how many you are currently using.
This has been suggested by quite a few other people for quite a while. On the up-side, each additional voice brings it closer to being implemented, no idea what Tim has planned for the next patch. 