for the last few years, louise - or rather, me, the resident hairdresser - has dyed the tips of her hair hot pink. this past weekend, she was ready for a change. indigo blue was requested. you ask, we deliver. it's a simple, though lengthy process: make a very low ponytail (everything below the hair elastic will be colored) first bleach out as much of the existing color as possible, using a platinum dye kit from the drugstore. then, i applied a generous dose of atomic hairdye in the color blue velvet. we wrapped the bottom of her ponytail in several layers of aluminum foil and left it on overnight. rinse and wash the next morning. done!