Muttville Senior Dog Rescue just hit a staggering milestone: 14,000 older dogs saved. The 14,000th? An eight-year-old charmer named Slinky, who also managed to win Prom King at the organization's annual gala. His adoption fees have been waived, so somebody in this city is about to get a very good deal on a very good boy.

Here's what makes Muttville remarkable — and it's not just the cute dogs. This is a nonprofit doing exactly what we wish more organizations would do: solving a real problem, efficiently, without a bloated bureaucracy or a $50 million line item in somebody's budget. They bring in over 20 senior dogs a week, find them homes, and keep operating out of their cage-free spot in the Mission District.

Senior dogs are notoriously hard to place. Shelters everywhere struggle with older animals who get overlooked for puppies. Muttville identified a gap, built a model around it, and has now scaled to a pace that would make most city departments weep with envy.

No task forces. No multi-year feasibility studies. No consultants billing $400 an hour to produce a PDF no one reads. Just people who care about a mission, doing the work.

If you're in the neighborhood, their Mission District location is open Tuesday through Sunday, 11 a.m. to 4 p.m. — and you don't even have to adopt to visit. You can just show up and get some dog cuddles, which, honestly, might be the best free mental health service in San Francisco right now.

Congratulations to Muttville on 14,000. Here's to 14,000 more — and to Slinky finding a couch to call his own.