I have a suggestion that may sound outlandish at first but actually has merit. As well as being a cyclist I'm also a runner and have been labeled 'old skool' by my fellow runners... I run in flats. meaning 'sneakers' like Keds and Chucks. I'm not a heel striker so I'm OK. A little over a year ago I got a pair of Vibram FiveFingers to run in and ended up wearing them even when I wasn't running because they felt so good to wear. Since I don't wear bicycle specific shoes anyway I went on a ride wearing said VFFs... what a breakthrough that was! I didn't need clips or hipster PowerBands like what I have on my fixie... the VFFs allowed my toes to grip the pedals like a monkey grips a banana with it's feet. It was awesome! So simple yet so effective!