Juno is the queen of the Roman pantheon. Wife of Jupiter, protector of women, and matriarch of Rome. Juno is an excellent goddess to call upon when you're looking for a little extra protection from a mother figure. She's not the cuddly tells you stories and rocks you to sleep kind of mother, she's the "I'm kicking this bully's a$$" kind of mother. Her protection is best when used by woman.
For more information on Juno: http://en.wikipedia.org/wiki/Juno_(mythology)
Minerva is the Roman and Etruscan goddess of wisdom, arts, trade, and defense. If you're starting a business Minerva would be an excellent deity to call upon. Having an art show or theater performance soon? Ask for Minerva's blessing.
For more information on Minerva: http://www.godchecker.com/pantheon/roman-mythology.php?deity=MINERVA
Nephthys is the Egyptian goddess of death. She comforts the living and guides the dead to the afterlife. If you need comfort from someones passing or want their journey to the afterlife to be eased, call on Nephthys. She is also an excellent deity to call upon when you are looking to end something: a lease, a relationship, a job.