A set of sheet dividers comprises a first plurality of sheet dividers, each divider comprising a sheet with a tab extending therefrom at a different location along the same side as all other dividers in the first plurality and to a first extent from the opposite side of the sheet, and a second plurality of sheet dividers, each divider comprising a sheet with a tab extending therefrom at a different location along the same side as all other dividers in the second plurality and to a second extent from the opposite side of the sheet that is greater than the first extent.