My 2 1/2 year old gets into everything. All the time. So, especially in a busy time of year (such as Christmas) or anytime I need to be able to get dinner going, make a phone call or any of those things that toddler's (and preschoolers, and eight year olds) just don't seem to understand, I often use the flashlight.
Flashlights are lot of fun. Just turn it on, and let them explore. Show a younger child how he can shine it in a dark corner, or under an end table. For the brave, shut them into a windowless room or closet. One flashlight is fun, but two flashlights and two kids is even more fun. Try flashlight tag.
The bright little flashlights make great stocking stuffers, and we always have plenty on hand.
Need more tips this busy time of year? Go over to Rocks in My Dryer.