Not a penny. My mother knows how to cut it, so I don't need to spend anything. And also, I use the shampoos available in my house (I don't live on my own), I don't have a special one for myself. So, spending is completely unnecessary for me.
More than you would think I get it shaved maybe 3 times a month at 8 euro a time and still use shampoo/conditioner (probably habit at this stage ) which maybe all together comes to about 25/26 euro a month.
I shave it myself with a straight razor and foam so that is is completely smooth. Same with the face other than the beard. Razor cost me 30 when I was 22, I sharpen it myself. Kind of old school, but nothing gets me smoother.