Growing your own herbs inside, like basil and thyme, is just as easy as growing them outside. All you need are the proper materials and a windowsill or ledge that gets the most sunlight. (Herbs need at least four to six hours of sunlight). For less than $10, you can have your own fully grown herb plant for what one package costs at your local supermarket! Flex your green thumb with these helpful pointers on creating an indoor herb garden.