Have you ever had the need to place a TODO comment in code? Most of us will have. TODO comments are often a temporary reminder to ourselves, a pointer that tells us to continue work on something after finishing something else.
A TODO can be a bug, a code smell, an optimization or even a feature. That last category should probably be logged in an issue tracker like YouTrack, JIRA, GitHub issues or Visual Studio Team Services, but the others can usually found in about any code base:
// TODO: This needs cleaning up
// REMARK: Do not change this code - it comes from my brilliant mind and is