She has very little in common with Slytherin, aside from her resourcefulness. She doesn't want to lead, or crave power, or put herself first.
Although she has a lot in common with some Gryffindors, Caylie doesn't have the reckless bravery thing down, or the pursuit of adventure. She could almost be a Hermione-type, but.. no.
While she's definitely creative, she really doesn't pursue an intellectual life, so Ravenclaw doesn't seem like it would fit.
So Caylie's a Hufflepuff. She's organized, patient, hard-working, and concerns herself with serving others practically as an instinct. She gives people unlimited second chances if they're at all special to her and she spends an inordinate amount of time taking care of people or preparing to take care of people. Most of her hobbies involve creating things for other people to enjoy.
The Scarf of Sexual Preference says: It'll Never Be As Raunchy As Her Stories