Vaguely Butter

Quickclick is a Blender addon that switches object interaction modes with mouse clicks. Double-click an object to enter edit mode, Alt + double-click for pose mode, and Shift + double-click for texture paint mode.

Quick Bevel is a Blender add-on that applies bevels through single-button clicks, handling the bevel along with auto smooth and harden normals options. Buttons cover both sharp and dull bevels.

Swap Orientation is a Blender add-on that swaps the x and y render dimensions with a single click, letting you flip render orientation without manually resetting both values each time.

Quick Cam is a Blender addon that adds two buttons to the timeline panel: one binds cameras to markers on the current frame, the other deletes the marker on the current frame.