The greatest things to stack are money and jewelry! When it comes to stacking jewelry you have to go big or go home, there are no rules and there is no such thing as too much. With necklaces, rings and bracelets you can mix metals and wear multiples. I know that some people have a phobia with wearing gold and silver at the same time but I see no problem with it, I actually love pairing gold and silver together, they match perfectly fine you just have to wear the right pieces together. Stacking jewelry is great for an outfit, it adds more style and versatility. Although stacking is great it is not fit for all outfits, certain outfits require minimum amounts of jewelry, if any at all, and others have no limits. With stacking you can do a lot on both of your hands and arms or choose to be simple with one arm and do a lot with the other or you can go all out with stacking on your neck with great necklaces and on your arms/hands, either is great but once again it all depends on the outfit and how far you're willing to go. With jewelry more is always more and there's nothing at all wrong with that, don't let anyone tell you otherwise!