The topic of etiquette seems to be a reoccuring one in my life lately. I think most traditional etiquette rules are lost on my generation (cue talking on the phone at the grocery store check-out and over-telling of personal information on Facebook). I can't decide whether or not I think it matters.
I think it matters when following the rules of etiquette help you to show appreciation. For example, I wrote thank you cards to everyone who helped with my wedding and gave gifts. Many people commented that they were shocked to receive a thank-you note, expressing that they don't often receive them. Is this practice out-dated? Another is RSVPing. I'm always pleasantly surprised when people do RSVP, but it happens so rarely. Again, I think it shows appreciate for the invitation and all the work that goes into planning and hosting an event.
I think that rules of etiquette don't matter when the behavior in question doesn't have to directly affect anyone else. For instance, the idea that it is inappropriate to have a baby shower for a second child seems so silly to me. If someone wants to host a baby shower for a friend--kudos, what a generous offer. If you're offended by this, what's your deal? Don't come.
What rules of etiquette do you live by? What could you do without?