Potions have such short durations that, aside from healing potions, I never use them. With food having less of an effect than potions, the only time I ever used any was just to find out what effect it had. I think that, aside from Healing Potions, both potions and food could use a buff. For as little as they sell for, I still find it more worthwhile to sell them than to use them.
I might be willing to use them if they had a 0 AP cost. This could be not overpowered by implementing a global cooldown on consumables (per character, of course).
