CASHnip Kitty, formerly known as Sir Whines a Lot, lives at the GuRuStu offices in Tulsa. He collects money for the Tulsa Day Center for the Homeless in downtown Tulsa. This started in 2017 when the owners noticed dollar bills inside the business near the glass doors. They figured out that people were using dollar bills to play with the cat, and then the cat was "stealing" them. Rather than keep the money themselves, the business owners decided to donate the money to the Tulsa Day Center for the Homeless. According to signs at the location, you will be blessed if you give cash to CASHnip Kitty! He has a couch, some dollar-fabric pillows, and lots of Christmas cards right now. He also has a following on Facebook (CASHnip Kitty) and he went viral in the fall of 2017. The cache is just west of CASHnip Kitty's home.
I've tried to get good coords multiple times, but the buildings keep throwing the coords off. . . use the hint if your GPS coords are bouncing. It is in a public-available location with 24/7 access, not behind a gate.