Controlling how much a particular point is rounded/beveled: select vertex, change bevel weight with the transform tool.

Quick favorites: hover over a parameter, ex. viewport wireframe, to add it to quick favorites. Then pressing Q brings up the list of quick favorites.

Local mode: shows only the selected item in a scene?

Rounded hull shapes: use a 4-point rectangle and use the bevel modified to round the edges, then solidify to push the shape outward.

Using a "mirror object" to mirror objects around other objects.

Addon recommendations

Power Snapping Pies: Blender addon which provides a pie menu to change the snap setting.

3D View Modifier Tools: Blender addon (included w/ blender) to add convenient buttons to the modifier stack screen.