I have Save PDF to DEVONthink 3 as a destination in the Print > PDF submenu.
So, putting these together, in App Shortcuts I defined a global All Applications shortcut for Save PDF to DEVONthink 3 to also be ⌘P. Now in Safari – or wherever – if I want to add the content to DEVONthink I press ⌘P twice – once to open Print then again to print the content to PDF and cause DEVONthink to open its group selector to choose the destination.
CMD + < to zoom out
CMD + > to zoom in
CMD + [ move object backward
CMD + ] move object forward
CMD + shift + [ move object to back
CMD + shift + ] move object to front
CMD + shift + m gather all app windows
Zoom in/out i use constantly, with graphics apps but also text based apps such as Pages, Safari, xcode etc.
Not always, keyboard zoom gives you defined zoom steps and without panning. So zoom a few times in and then a few times out and one is back exactly where one started. Important when dealing with e.g. (electronic) schematics, large drawings or just keeping to OCD rules