There are several ways to blend essential oils, though you will find a measuring cup and a small funnel useful for all of them.

Method one (for simple blends)
Add correct number of essential oil drops to the appropriate amount of carrier oil in a bottle and shake well

Method Two
If making a blend it is easier to add the required drops to the bottle first, gently roll the bottle between your hands to blend the oils well then fill with the measured quantity of carrier oil to complete the recipe.
Method three
If you are going to use all the oil at once, it can be mixed in a small china or glass dish, measure the quantities into the dish and blend well together.
Healthcare and First aid
Use 3-5 drops of essential oil to 10ml of carrier oil, unless otherwise stated.
Self Help and Beauty
Use 3 drops of essential oil to 10ml of carrier oil, unless otherwise stated