LOL Cool and congrats on the FFQ!
I use FQCs too, and those FFQs are nice! I wish Kaia would be more worth it. lol Stat-wise.
When I get a FFQ I tend to use it on either of my pets, or if I don't feel like changing a pet's color I can save the trip to the Fountain until I get another FFQ. Then I use one, and then I complete the new one so I have that one as a "spare". I don't change my pet's colors often, but every now and then, with the seasons or around holidays.