Goldilocks

[Tina]

v. to goldilocks: to try out [multiple] [options] or variations, often without paying for any or all of them, until one finds one that is [just right]

[Renato]

A fairy-tale heroine who enters the house of the Three Bears and declares the possessions of Baby Bear to be ‘just right’, as compared to those of Father Bear and Mother Bear.

[Couch Potatoe]

used to describe a situation in which something is or has to be exactly right: