Drill acrylic without buying special bits
When a recent project called for drilling holes in acrylic, I turned to my regular twist bits. The result: cracks in the acrylic, and grabbing. A search for specialized bits revealed they have a steep cutting angle, like the pilot tip on spade bits. So, I tried using just the tip of the spade bits I already owned. Result: clean, no-grab holes, and I didn't have to purchase new bits.
—Michael Driver, Strongsville, Ohio