Plants make wonderful indoor companions. Of course they are pretty to look at, but they also offer health benefits by adding oxygen into the air. Remember how proud you were of your bean plant in a paper cup (or mini milk carton) that you grew from a seed way back in kindergarten? Houseplants can help kids learn about how to grow and care for living things. One of my favorite houseplant benefits is the fact you can grow herbs indoors too. How great is it to add some fresh spices from your very own garden to your salad or pasta dinner.
A variety of self-watering systems make caring for indoor plants stress-free. And these simple gadgets help make sure you don't over water the plant. Here are some of my self-watering faves:

(Photo: Drip-It Frog)
Drip-It Frog
Aqua Globes
Multi-colored handblown glass globes supply water to plants for up to 2 weeks. $15 each
Watering Globes
Clear or colored glass globes water plants for about a week. $15