Biscuit joiner helps you get a grip 

Here's a simple way to add a "handy" fingerhold to projects, such as cutting boards or lids on tool chests and keepsake boxes. Just use a biscuit joiner to make a series of stacked cuts, moving the blade down ¹⁄₁₆ " for each cut, until the notch fits your finger.
—Chris Finke, Chanhassen, Minn.