Blending Essential Oil
Blending essential oils is one of my absolute favorite things to do. As you experiment with essential oils you will find that some oils blend great together and others don't. I recommend keeping an 'Aromatherapy Journal' where you keep notes on all of your blends including, recipe, purpose, effects, and precautions. Whether the blend is good or bad, WRITE IT DOWN! This way you may look back on your experiences and learn from them. It is really FUN!
ALWAYS USE CLEAN BLENDING TOOLS!
Rubbing alcohol is best to use when cleaning pipettes, blending bottles, etc.. You don't want to contaminate your oils with other oils. Even though it may look like there isn't any oil left in the pipette there probably still is if you didn't use rubbing alcohol to clean them. Rubbing alcohol strips the oils clean and evaporates in minutes. Double check your pipettes to make sure the alcohol has evaporated before using them again. I have found it necessary to lightly tap my pipettes on the edge of the sink to get all of the alcohol out. After that, they are able to be used again within a couple minutes.
You should never reuse your essential oil bottles. It is my experience that they never seem to be free of the original oil stored in that bottle. If you were to reuse that bottle for another oil, it would become contaminated and go rancid. Even though the bottles are expensive, it is best to just send them off to your local recycler.