To keep shelves from sliding off of the narrow, round shelf pins, I like to rout notches in the shelves for the pins to rest in. To do this, I turn to my router table. A straight bit makes a clean, flat notch. And a pair of stop blocks clamped to the fence guide the shelf.

		Sources for some of the hardware and supplies mentioned in this tip. Amana ¼" Straight Plunge Router Bit 271626