Did you know that you can charge your crystals with any of the sprays?
Start with clean and clear crystals, so cleanse them in your normal manner. Then in a small dish put in your crystals you'd like to charge and pour in the spray making sure its enough to cover the crystals. Soak for about 15 mins. (Note that some crystals don't like to be in water and can be damaged so make sure yours are okay with water before you start this.)
That's it! The energy should last up to 2 weeks. You can make amulets or protection stones or whatever you'd like. When its getting near the two weeks you can restart the process by cleansing the crystal and soaking it again.