Currently the snapping toolbar when editing data can be suspended by holding the spacebar down. So when I am working on the layout of a map and placing lines, title blocks, legends, text, etc. I would love to be able to hold the spacebar to suspend snapping of elements to Guides, Grid, Rulers, Margins. I am unaware of a current shortcut, I have to right click and go to the Arcmap options dialoge and uncheck snapping then repeat the process to turn snapping back on, by holding the spacebar working with layouts would be much quicker.