The best thing since ‘sliced bread’ would be modern technology in the way we communicate with others around the world. There was a time when the only way to connect with someone new was through being a pen pal, and waiting on snail mail to deliver the, anxious awaited, letter with photo to see who you were talking to. Whew. I love the fact that I can video chat, text, or email some one I miss instantly. Modern technology is awesomely appreciated.
Now that is The Best Thing Since Sliced Bread