I'd rather not go all the way to brindleton just to get wellness treats, and you can't transfer funds into a rental house. The revenue is transferred directly to the household funds.
I guess it is what it is.
@OmegaGamer123456 as @Sketch793 mentions the Wellness Treats work and also save time at the vets office itself, you mentioned it takes a long time there so instead of a vet's appointment you can just cut that part out and get the wellness treats from the machine to treat a pet without an examination. It's much quicker and once you've been there and bought a big supply of them you don't have to return. All my pet owner Sims carry a supply of Wellness Treats in their personal inventory.
If you add a vending machine at home it needs to be stocked manually by having your Sim create the treats. Or you can buy some again at the vet's office then take them to your new vending machine to stock it.
If you want a quick way to get some funds I usually get a collecting hobby like fishing, harvesting and collecting. Adding a few plants to harvest can be a real money spinner.
