My husband has discovered the secret to re-using Glow-Sticks. These are the glow-in-the-dark sticks that kids love to use for camping, Halloween, etc. Our step-daughter likes to bring one to bed with her at night as a personal night-light when she is visiting us. When she wakes up in the morning, we put the glow stick in the freezer. At bedtime, we take the glow stick out of the freezer and my husband runs it under hot water until the stick glows again. The glow-stick magically lights up again and can be used night-after-night.
Source: My husband.
By Nancy Boykin from Minneapolis, MN