Cat Fights

My girls are already fighting over things.  I grew up with a lot of siblings and lots of sisters so I knew the fighting  was inevitable but I never realized they would start this young (Elina is 2 and Talanoa turns 1 next month).  My girls get along well most of the time but when they both want the same toy, cookie, whatever.....it's on!  Lol.  The fight this morning was over Elina's toothbrush.  Random, right?  Talanoa wanted her toothbrush so they're both screaming and pulling on the poor thing.  But are the tears really necessary?  Over a toothbrush?  Lol!  So what do I do?  I did what my parents would do when we'd fight over things.  Everyday in our house we'd hear, "If you can't play with it nicely together then I'm taking it away."  AaAaaaHhhHhhhhh.....I'm turning into my parents!!!  Hahaha