Juniperberry is best known for cleansing and encouraging elimination, ideal for beating those morning-after blues and also a good oil for detoxing. Juniper is also a good tonic for the kidneys, it's antibacterial properties can help with urinary problems.
Try a vigorous massage with a blend of 2 drops of Juniperberry and 2 drops of Grapefruit in 10ml of Coconut oil. Or add this to an unfragranced shower gel, the same essential oils have a cleansing and refreshing effect.
Also, after any period of indulgence, try making the following body massage oil a New Years resolution: Blend together 30ml of Peach Kernel oil, 4 drops of Juniperberry, 4 drops of Rosemary and 3 drops of Geranium. Apply daily, preferably in the morning.