Sisters are a special bunch who masterfully know how to braid hair, find fun things to do on vacation, and make everyone else's birthday feel magical. Here's how to swoop in with birthday gifts for your sister that celebrate the special, funny, loving, awesome person she is. Whether your sister is older (and sometimes wiser), younger (and wiser in ways you didn't expect), or the very same age (twinsies!), we've set you up with the very best birthday gift ideas for your sister.