Move Illustrators Grid Above Your Artwork for More Precise Work

Adobe Illustrator defaults to hiding the grid behind your artwork. If you are working zoomed in a lot and need more precise snapping here is how you enable the grid to show above the your artwork.
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Select Guides and Grids in Adobe Illustrator's Preferences.

Adobe Illustrator Menu - Preferences - Guides & Grid

Deselect the Grids in Back option and click OK.
Grids in Back Checkbox

The keyboard shortcut for showing and hiding the grid in illustrator is Command⌘ + ' (key to the right of the semicolon).