I'm a baby witch and I want to make my first batch of moon water (especially since Friday the 13th is a full moon). I've read that you're meant to leave out some water to be charged by the moon, but take it back inside before any light from the sun can touch it. However, I'm usually not up by then. So, how long do you have to leave the water out to charge? Does it have to be the whole night or only a few hours? Does it make the water more potent if you leave it out for longer to charge?