I haven't changed too many of them yet.

Break shape - B
Find (in Object Manager) - F. This comes in handy because if the layer is collapsed in the Object Manager, it expands it automatically and takes you right to where the shape is.

Amoore - The default shortcut to trigger Screen Capture is Control-Q, and there's an entry for Screen Capture in the Customize Key Shortcuts utility under the "Utility Menu" category.