I enjoy lots of different ways of getting myself off, but my favorite has to be this one.
I get into the shower, I have one of those extendable shower heads with many different settings on in, including vibrating and high pressure ones. I lay down in my tub and go through the less intense settings until my clit is hard. Then I tease myself with the harder settings until I am very wet, I insert my hairbrush into my pussy and thrust it in and out, then I press the end of it against the bathtub so it stays in and focus the showerhead on my clit. I pump the brush while teasing my clit with the shower until I cum. its a great feeling and works really well.