We all need regular access to Holy Water.
Here are two Holy Water bottles, keep one by your bedside and the other in your kitchen.
They are plastic with gold tone markings. They hold 4 oz.
Use them for daily use and definitely have some for the Three Days of Darkness. Only God knows the timing of this event, so be prepared with your Holy Water sacramental.
Most Catholic Churches have a Holy Water dispenser, either in the vestibule or in the Baptistry. Or, ask the Catholic priest to bless (and/or exorcise) a gallon of water for you. Most priest are very accommodating.
All packages under 14 oz ship first class.