Some handbrake cables have grease nipples.
Door hinges appreciate some grease now and then too.
Some oil or grease into the steering rack is good practice ( nipple under a rubber bung in the passenger floor).
yes jack up the car the grease nipples are top and bottom and one on the trackrod end.pump the grease gun untill fresh grease comes out of the rubber seal.
The trunions are the most important grease nipples. It is worth giving them a squirt every time you take the front wheels off.
Don't forget the oily bits, carb dash pot (3in 1), dampers, door hinges.
I also oil the hand brake cables at the back where the come out of the outer casing as they tend to rust and fray at that point.