It helps to have either high alchemy and enchanting skills.
1. Make a fortify restoration potion.
2. Drink it.
3. Unequip and immediately reequip any gear with a fortify alchemy enchantment. The effects should now all be stronger.
4. Repeat steps 1-3 as many times as desired or until you have a fortify restoration potion with an insanely high percentage.
5. Make a couple backup potions to prevent having to go through this again.
6. Drink one of the potions.
7. Equip an Amulet of Talos.
8. Have fun spamming Shouts.