I can't even use giant's toe atm because it says that it's a quest item :'(
Don't worry as it's not essential and rare. Look..
Giant Toe: Damage Stamina But use (same price, same effect): Bone Meal (found everywhere and on scheletons)
Blisterwort (mushroom very easy to find in caves)
Fortify Health " Wheat
Blue Mountain Flower (everywhere)
Fortify Carry Weight " Creep Cluster (easy to find on the rocks)
Scaly Pholiota (mushroom in caves)
or River Betty (if you like fishing)
Damage Stamina Regen. " Wheat
Juniper Berries (lots on trees in the Reach)
So, you see, there is no need to use Giant Toe when you can replace it by more common ingredients. Use 2 ingredients. Adding a third one does not change anything more. Among the most expensive potions are Damage (Health/Stamina/Magicka) Regeneration. Paralysis Poison, Invisibility, Slow Poison and potions having Fortify. Sorry I might forget some... I have reached max. level and I can hardly sell my potions. From 1.000 to 2.000 the potion it will take time.
