Glow-in-the-dark sidewalk chalk goes fast — buy two packs

Twelve sticks of neon and glow chalk sounds generous until you realize how fast kids go through this stuff. A determined five-year-old can reduce a stick to nubbins in about 45 minutes. The glow effect is fun for evening driveway sessions, but don’t expect the set to last more than a few serious art sessions. Buy two if you want it to survive a weekend.