One shortcut for finding a note and for running a command.
⌘K / Ctrl+K opens the palette. Type part of a note's name to jump to it, or part of a command's name to run it.
The same shortcut does something else when you have a selection in a note: it turns the selection into a link. The palette is a note finder either way — one to open, one to point at.
Settings pages are in the palette too, so hotkeys or git gets you to the
right panel without going through the menu.
See Keyboard shortcuts for every binding, or open Settings → Other → Hotkeys, which shows the same list for your platform.