Wow, personal insults? Sorry, you don't know me or how I ride. What I do know, is that a pound on a bike is an extremely small percentage of the overall weight of the rider and bike, and on a commuter it is usually irrelevant. I also know that weight savings is maximized when it is saved on the wheels, which is why I said it is money better spent to save weight with lighter wheels than on other parts of a bike. I have not said anything personally about the OP or you. I do not know how much he or she weighs. As long as the OP is a svelte 145 pounds, then saving weight on the bike is the only realistic way to save weight. Of course we are in a commuting forum here so I assume that things are carried on the bike. When you carry things on a bike, you add weight, sometimes more, sometimes less, the bike's weight becomes less of a factor.

Lighter wheels will make more of a difference than saving a pound on the rest of the bike. That is a fact. Of course that isn;t always a good idea since the wheels need to be durable for commuting. Now, if you don;t need any of these things, buy a lighter weight road bike and ride it when you don't need to carry as much. You will get the benefit of a lighter bike, and more sporty geometry. You could also go with a stiffer aluminum frame, which will feel better because it will better transfer power to the wheel. These are all real options that will affect a change from what the OP now has.

Thanks for your extremely helpful snide remark.