These are the oil leaks I've had so far and what I did to stop them. Here's my list so far...
1. Copper gasket under T-handle on bypass oil filter canister. This one was the messiest. Started the engine. The gasket was bad and it blew oil all over the place. Fix was easy. Replaced the gasket.
2. Oil pan cork gasket. Small puddle kept forming on the floor. Oil pan bolts weren't tight enough. Tightened all the bolts.
3. Brass fittings on bypass oil filter lines. Again, small puddle on the floor. This one was easy to spot but a small pain to fix. Removed the filter canister and lines. Wrapped the brass fitting threads with three or four turns of yellow teflon tape. The yellow tape is hydrocarbon resistant. White teflon tape won't last. That's why the fittings leaked in the first place.
4. Oil pan rear felt seal. The felt gasket gets soaked and leaks a few drops when the engine is running. I might live with this one for a while. The only fix I can see is to remove the oil pan and replace the felt gasket. For now I'll just check my oil level frequently.