Drag&drop todo\'s to any other day when needed. Mark (colorize) special days on the horizontal calendar for the current month. Change the word \"topic\" to anything you want and color the cell. You can decrease to 3 side-by-side todo calendars by deleting the 4th column. Put a bullet checkmark in the little box when the todo is done. You can add as many rows per day. You can colorize weekend day numbers in red. Use .rvf template (full year) or .sbt file (full year). Enjoy.