A well-adjusted and fitted toe clip and strap system can have just as much pulling power as a clipless pedal and shoe combo. In fact, many powerful track riders still use toe straps for additional foot retention to prevent their cleat from popping out of their pedal during sprint efforts. These nifty Toe Strap Buttons are not only handsome and have just enough flair for the nerdiest of cyclists, but they are useful to grab and pull when starting off the line. In addition, they prevent the strap from going back through the buckle should your legs be "strong like ox".
Grand Cru Toe Straps, other standard-width straps, and weigh 3 grams each.
I have a good feeling clips and straps will be making a comeback.