It would be great to be able to create a filter list similar to a play list in iTunes where you can add bugs. Have the ability to add a bug to a bug list then you could share your bug lists with other users just like you can filters currently.

Use case:
I would like to keep a list of bugs that I would like to work on or a list of bugs that I want to regularly check up on. The list could not be generated by a search it would just be the things I have added.