Here’s the real skill: aerodynamics. Don't just cram things in. Line them up. Think like a torpedo. Long, slender objects go in easiest.
Use your hand. Yes. Wash it really well. Then reach in and feel the space. It’s not that deep. Don’t be shy.
When the turkey is done, those aromatics are trash. Do not serve them. They’ve done their job. They gave their life for the gravy. Respect them by tossing them.