I was kind of surprised that this was not already up on the Nexus. It's a simple mod that significantly lowers the weights of various alchemy ingredients. Most will say 0 for the weight, but there is one.

My reasoning; I stuffed a flowershop in a backpack in the same manner the Dragonborn would, counted what I was able to fit in there, and adjusted the weight accordingly in the CK.

Please do not post this on Beth.net, they have one already.