Picked up this R134a charging hose and a can of refrigerant from advance auto for about $30. 12oz cans of the plain stuff with no stop leak or whatever crap are just $10! Was super easy to hook it up and get my system in the Miata from 10psi up to around 40. Now it blows super cold AC just like it did when I bought the car. Seeing as it took like 3 years to run low, I think this is a permanent plan for the future. It should take like 50 years to equal the cost of getting it fixed properly. Tested it on my drive home and was nice and shivering cold by the time I got home 20 minutes later.