I know this subject gets brought up periodically, so if I am rehashing, I apologize. My question is whether clipless pedals would be worthwhile for me. I have a 10 mile commute (one way). The last 2-3 miles of the return trip is mostly uphill (moderate hills). I ride a fairly cheap hybrid right now ($300 bike) with platform pedals. Will I be able to notice an appreciable difference or will I just look like a "Fred" posing as a serious bicyclist? Thanks in advance.