Tips for garage equipment?

Hi all,

Just a simple question from a newbie to the scene (got a '73 Dart Sport).
I'm trying to set up my garage-equipment.. What are the most essential tools for doing routine checkups and maintainance?
So not the sophisticated repairs, but simple jobs like correcting the timing, checking fluid levels, replacing spark plugs and the sorts.
I already got some basics like a ton of socket wrenches, a torque wrench, screwdrivers, multi-meter.
What would you recommend I add to my collection?

TIA for your responses!