How often do you use powerful/extraneous objects?

I have never used the relics but i'll leave them for my spellcasters and pirate family.
Weather machine is used by specific spellcasters.
My aliens uses the crown, sleeping pod, cloning device, simray and certain serums.
My scientists uses simray, and cloning device and certain serums.
The wishing well can be used by any of my sims. But next time I'll save the game before asking it for anything just in case I need to prevent another death. :#