Ok, I use my black soap to bathe, wash my face, hair etc... Shea butter, I mix a little bit with my usual moisturizer - just to thin it out a bit, for daytime use. At night I put it on with a little EVOO, jojoba and aloe vera mixture I made. My mom uses it straight day and night - she can stand the scent apparently, but her skin is LOVELY.
Anyhow - storage:
Soap: I put mines in ziploc bags then in huge tupper wear bowls with them silica gel packs inside the bowl to keep moisture away. You can buy silica gel packs at storage places.
Butter: Again, huge tupper wear bowls. No silica just put the cover on and leave it.
Both I store in a closet that's cool and dry and take out what I need when I need it.