Manners of the 2000's

Where in the world is Emily Post?  Or does anyone remember her at all?  She was the authority on manners and etiquette and granted that was "back in the day".  But really, we still need manners.
Men don't have to open doors for me or stand when I walk into a room (although that happened to me in Europe and it was kind of nice) but we still need to be respectful and polite.
Without manners, we may be cheating ourselves and our children of opportunities to be kind and to think about the others around us.  It's one thing to use our manners one on one.  Most times, people will say "please" and "thank you" but there are other manners that just seem to be lacking.  Some people are downright rude.  They feel entitled and certainly don't care how their actions and words are affecting the people around them.   Recently I saw a lady drop some things at the grocery store on the floor and she left them there-- just pushed her cart on around and went on.  It's not that hard to pick up the items dropped.  And then there's the thing with guys scratching-- disgusting but I don't want to see it!
We seem to have forgotten how to RSVP (and if suddenly you can't make it-- you need to let the person know if you told them you were coming).  Thank you notes, get well cards and birthday cards shouldn't be a thing of the past.  Even if you don't want to buy one, send an E-card!
With technology, maybe there should be some reminders on when it's not appropriate to be texting (while driving, in a meeting, while talking face to face with someone)! I'm a firm believer that emails should be answered in 24 hours, so if you can't answer at least acknowledge receipt of the email.  Don't hit reply all unless it is necessary.  Keep private conversations private.  Saying "excuse me" and then interrupting is not polite.
I continue to work on these and the more I notice the people around me the more I realize I need to do better and to be kinder.  Thank goodness, my mother gave me a good foundation.