Chris;// I might get the oil & filters changed every 50,000 miles or so but that's about it.//
What kind car are you driving here? Changing the oil in your car every 3,000 miles was necessary in the 1970s, when most cars used 10W-40 oil, which tended to wear out within about 3,000 miles. Thanks to improvements in high-quality lubricants and tighter tolerances in the assembly of automotive engines, the 3,000-mile baseline simply does not apply to many cars on the road today; in fact, automakers now recommend you change oil at 5,000, 7,000, 10,000 or even as high as 15,000 miles for newer models under ideal driving conditions. For example, Toyota recommends you change oil at 5,000 miles, Honda recommends 7,500 miles, General Motors suggests 7,500 miles, and Ford recommends 10,000 miles. A 2008 Porsche Boxster can go 12,000 miles between changes, and a 2010 BMW 3 Series can go up to 15,000 miles before you change oil.
I always changed oil and filters on my Jaguars at 6,000 miles.
50,000 miles!! It is little wonder that you "drive it until it stops".