So I've never been tanning due partially to a (totally justified) fear of skin cancer, and partially to the fact that I'm half-Filipino and don't really need it. However, I've been noticing some very conspicuous tan lines--and the fact that my left arm is visibly darker than my right side (probably from driving). While my dress is not strapless, the strips of light skin are kind of awkward...I've heard that going tanning can even this out. Is this true? Any advice for beginners? Or should I even bother?