In a recent episode, @MacSparky talked about a keyboard shortcut conflict he’d encountered. Thankfully David was able to figure it out on his own but, for the next time, there’s this free app. Check out Irradiated Software’s free Shortcut Detective:
I’m sure this was posted in response to DEVONthink’s idioticunscrupulous keyboard highjacking of things ⌘-/ for their service. So annoying, and I have to dig around to figure out that it’s a service every time.