Firstly I suddenly remembered that when growing up my we used to have a tiny font inside our front door and my mum would always dip her fingers into the Holy Water before she went out anywhere. Is this a good thing for people to have? Do you have this at home?
Secondly, what other things can we use Holy Water for? Can we use it for ourselves? Does it have healing properties? Can we use it to pray?
Holy Water is a sacramental and like other sacramentals it can aid in our prayer life. I have a holy water font at each of the entries to my house to remind me of my baptism that is what a font is suppose to do.
From the Catholic Dictionary
Sacramental blessed by a priest, invoking God’s blessing on all who use it. Blessed water is a symbol of spiritual cleansing, and its use is advised in moments of physical danger and against temptations from spiritual enemies. I is common practice to dip one’s fingers in holy water and reverently make the Sign of the Cross as one enters a Catholic church, and it is recommended for use in the home. Holy water is used in all blessings. There are, besides ordinary holy water, baptismal holy water, used with chrism in the conferring of public baptism, and Easter water specially blessed for use during the paschal time.
It should not be used in a superstitious way in that it has supernatural properties in and of itself.
I have a Holy Water font at every entrance doorway in the house as well as at the doorway to every bedroom. Holy Water is a Sacramental to remind us of our Baptism. I bless myself with Holy Water before leaving or entering the house & before entering my bedroom. It should not be used for any superstitous purposes.
I’m not sure what you mean by “superstitious purposes”. It seems to me that to some who dont understand what it is used for, could place rightful uses of holy water under that category. For example, to some, the sprinkling of holy water in their homes to bless their house and ward off evil might seem superstitious usage of holy water.