Is the Tallit Katan allowed to be worn directly on the body?
At what age do boys need to be educated to wear tzitzis? How careful do the parents need to be in ascertaining that they remain kosher at all times?
What have you found to be the best way to wash tzitzis? (easiest, least harmful (least likely to pasul), and most clean)
Is it better halachikally (according to jewish law) to have the beged (garment) of your tzitzis to be made from wool as opposed to cotton? Is it a chumrah?