Other places to use Octo besides Newties?

I actually do the opposite - when I leave a platform, I place Octo - it does some damage while I'm somewhere else, and helps me out a bit. When farming items from low level monsters, I place octo at one point, then go kill elsewhere, and check when octo runs out if anything dropped. I refuse to snipe newties, so I won't get much use out of it there.