The timesheet widget let's you hover over a day and a task in a table style view, and add time quickly and easily on a particular table entry.

There is no shortcut for removing time, however. If asked to correct timesheets, it can be a pain to manually navigate to each task, scroll through lists of time, and delete certain entries.

It would be nice to support both "add" and "remove" options directly from the Timesheet widget, perhaps with some safeguards such as confirming an extra time before removing any tmie.