There is also the famous blessing of chalk which can be used then to mark the lintel of the house. On the Vigil of Epiphany, however, there is a special blessing for Epiphany Water. Here is a photo from a couple years ago, of yours truly blessing Epiphany Water. I should be blessing...
While the father and oldest son were incensing and blessing the house, the youngest child carried a plate of chalk. The chalk had been blessed with a special blessing after morning Mass. The father took the blessed chalk and wrote over every room that led outside, with a different formula...