When I launched a side business about five years ago coaching people about their finances, I enjoyed it so much that I barely charged--if I charged at all--for my services. Many of the people I was helping were in the hole--and desperately trying to get out. Plus, I loved talking to them about their money, so it didn’t feel like an even exchange. I felt ashamed asking them to pay me.

Image: http://www.flickr.com/photos/92396017@N00/1323193903