One of the best things I have spent money on (besides cuter clothes) to help with my dysphoria has been my little electric shaver that I keep in my purse for touch-ups during the day when I start to feel scratchy or I see that I've missed a spot on my arms, legs, neck, or face.
I seriously cannot begin to express how great it's been to be able to pop into the bathroom and do a quick touch-up when I notice a spot I missed instead of obsessing over it all day.