Disclaimer: I sell greeting cards for dating. I keep reading about how people jump into the sack on the first date and then are disappointed because everything fizzles. Does anyone even bother to send a note, or flowers, or pick up the phone just to prolong the anticipation? Seems to me that texting, swiping and email just show a lack of effort. Rushing it seems guaranteed to disappoint. Teasing may sound old school, but it sure does work — for both sides.