the best way to store seed are storing in any places, like USB, Harddrive, and write on the paper, and at lease write on 2 / 3 papers, and placed on different place, i think it will save, if you usb broke, you still have hardisk, if usb and hardisk broken, you still have a sheet of paper. so i think its the best way to store seed
Putting it on a flash drive is just the backup and as well as on the HDDs. But you're main copy should be writte on a piece of paper that's quite strong like a cardboard or any strong paper material that's long before it brokens.
I store the seeds of my wallets in somewhere safe where I only can reach. And I don't put them in a place that I can forget easily. Because we know that there have been many people who have forgotten the private info of their wallets and can't reach due to it.
Yes, put it only to a place where you mostly remember it. No need to be weird upon hiding it. As long as it's not that visible to your visitors or any people that you don't trust but you always remember that place and you're very much familiar on it, that should be fine.