We stumbled over the option to create QR codes in Google Spreadsheets and thought it was a great way to create and list all of your QR codes.

Here is a link to a Google Spreadsheet you can take a copy of to try it out for yourself.

https://docs.google.com/spreadsheet/ccc?key=0AoCWSiyygHxKdFJEN2QwY0FFU1pDeXhwM3NiQ3l6c0E

From the spreadsheet you could print out your QR codes, share them, or screen grab them to use in other web applications as images.