Rituals that are fast and just things I may have laying around home
Merry Meet Iamchosm,
The fastest and easiest would be a salt bath. 
I love rhyme and usually do my chants on the fly. Depending on what the cleansing is needed for, draw a bath, add some salts, and make a type of chant/spell/meditation what-have-you. The most important thing is your intent. Focus on the issue you are dealing with, visualize superb results, let the bath soothe your mind as it soothes your body. I always love an incense/sage/burning cleanse in which I move room to room. As I stated, since I am not aware of the issue, you will need to decide the best way to go. I hope this helps you out.
Merry Evening, Lady Gene 
