Re: Just how many oil drain pans do you need?
They last for years (unless you run over them).
Ok buy some good ones and look after them. They will end up costing you less over the years.
I have a socket set that is still complete and used weekly that was a present for my 18th birthday almost 50 years ago. The case was rubbed down and repainted for I think the 3rd time last year but all the components are in perfect order.
As for jack oil... Automatic Transmission fluid does the job. I made a Jack during my apprenticeship that uses that as fluid and is working as well today as it did back in 1972. I replace the oil seals and the oil every few years and that's it.
You can exist without feeding money to Bezos via his stores.