I know some of you regularly ship bikes you sell, etc. What is the safest and most cost effective way to ship? USPS, Fed Ex, UPS, etc? I used to sell a few bikes on Ebay (3 - 5 years ago) and could ship a complete bike for $40 - $50 if I remember correctly. Everything is packed in a standard cardboard bike box from a local shop. I just tried to ship my son an inexpensive older fixed gear across the country for college and USPS wants to charge $100. Is this the reality today? I might try to sell a few on Ebay again and don't want to undercharge and lose my butt on shipping. I also don't want to overcharge and piss people off. Any insight would be appreciated.