For starters, I don't get any. No privacy in the bathroom for me. I have three little kids, and we just became okay with no privacy. Occasionally I insist on it :)
However, I've been showering in front of a window for almost a year now, and was starting to feel like I shouldn't be okay with that. I see neighbors through our bathroom window. I still stand naked in front of it. Routinely.
I finally motivated to change that situation and here's how it went. I bought this frosted film for windows (I'd used it before in our first home), and went ahead measuring and cutting it to fit the master bathroom window. Here is a shot in progress, with the top half frosted and the bottom still clear.
And here it is completed:
The bathroom looks really dark in this photo because I'm a total amateur.
Also, the pulls on the window look ridiculous because they're too close together. I know. Not my fault.
I now have privacy from the neighbors at least.