DEAR HELOISE: The best way to separate coffee filters is by using a kitchen gadget called … wait for it … a coffee filter separator. Available at major retailers, online, or at your favorite grocery store, it looks like a large plastic tweezer with rubber tips. And it works every time! — Dan, in Charlottesville, Virginia DEAR HELOISE: Thank you for your great column! What would you do about insect eggs that seem to hatch in a stash of paper bags…