Roller bottles are a convenient way to predilute your oils and have them ready to go. When I started I simply put a little carrier oil in my hand, added a couple drops of essential oil and applied. Soon, I found I was using the same combinations over and over and that’s when I decided I needed to make rollers. I made one for digestion, sleep, stress, immunity, and pain. I follow a recipe of 15 drops of each essential oil I want and then fill with carrier oil (for a 10ml roller bottle). If you want to be more specific use the dilution calculator . Some people feel this is too diluted while it may be too strong for younger children. I have attached a helpful chart as well. You can find cute cases to hold your rollers and you can label them a million different ways. Some people use a label maker, you can buy circle labels from Young Living, abundanthealth4u.com sells them, you can make your own with Avery address labels (glossy are best), I have used Avery 22807 glossy labels on both my mason jars for things like sugar scrubs and bath salts as well as on my roller bottles. Avery has great online templates that you can setup and print from . I have recently been using LD © Glossy Inkjet Photo Sticker Paper (8.5X11) 100 pack that I can use any Avery template and simply cut them out as it is a full sticker sheet. People have also used simple masking tape or washi tape marked with sharpie. I once got each of my kids different washi tape when I made them their own bottles, so they knew it was theirs.