My biggest pet peeve is people playing from tee boxes that too far back for their skills. I feel/think/believe that the tee markers should be based on handicap, not age or sex. Weekend golfers would play faster and enjoy their game more if they would move up one tee box. Weekender's from the blues/blacks/tips (whatever color your course uses) that have to literally crush their drive to get to the fairway and then mash their three wood to barely get to the 150 yard marker for their third shot are only slowing everyone else down.
You shouldn't be hitting from the tips unless you are a single digit handicapper, 10-18 from the middle tees and above 18-20 should play from the forward tees, in my opinion. The golfer would enjoy himself/herself much more, develop their game to take it to the next level and speed up play.