With the 1.10 patch two new craftable bag types will be available specifically for holding items related to either herbalism or enchanting. Tailors will be able to try their hand at crafting these new bags as the recipes will be found throughout the world. These new specialty bags will function similar to how a normal bag would, but with the restriction of holding only herbs or enchanting supplies. The recipes will be made available for crafting these bags in various sizes, the high end of each type being 24 slots. - Drysc

Hopefully this new change being implemented will make things vastly easier for everyone in the Warcraft World, and will make way for new "Proffession bags" to be created by Blizzard!