Continuing the series of diary entries on Defect Tracking Patterns
This pattern is named Use a Tracking Tool.
Post-it notes, programmer's memories, even email, are all unreliable repositories for bug reports and feature requests. All of them are also difficult to coordinate on a team of more than 2 people working together for more than a few days.
Therefore:
Use an automated tracking tool. The tool doesn't have to be sophisticated -- it can be a spreadsheet in simple cases -- but it must be shared.
Bug tracking software has features to help manage work. Users can create filters and sorts to assist workflow. Filter on the field Detected By with your id to show the bugs you've filed. Filter on Assigned To to see your responsibilities. Sort by Severity to track the top problems.