I knowingly use NIST algorithms only when it is the sole option.
On occasion I have played with nesting a variety of non-NIST algorithms in layers. It works… and it is also a lot of work. 
Yeah, it's the work part that I'm not sure I have the time for ... and there's 10000% chance I'm already identified on whatever "lists" they're keeping for eventual roundup. Last time I flew to the Phoenix area for work, I was concerned that I'd show up on some no-fly list. I did not ... yet.