Refillable potions.
They refill when you do certain actions ( mostly killing enemies ), but will have limited usages before it loses potency, because it would be wrong if we could use 1 potion for 1 month lol. Would be nice to implement the usage of potions/flask/elixirs more and in bigger range of content. I don't know whats the plan for Alchemy, but i think it would add flavor to the profession.
Not a bad idea. I like the concept of being able to refill a potion by doing a certain action. The only downside I could think of right now is how it might impact the gathering profession for potions, and the market itself for gathering materials.
With love,
Joda