Toe spacers. Soft gel like material. Sort of look like the disposable ones chicks use to space their toes when they paint them. Also, as everyone else said, go barefooted as often as possible and practice moving your little toe. It took a while, but I can move my small toe side to side without moving the others.
I do go barefoot inside my camper. I won't walk around like those dirty hippie fucks that have dirty assholes and smell like crotch funk, oh wait that's me, never mind. but no I won't walk around outside without shoee. I've given up on a whole barefoot hiking barefoot walking thing. After putting a cactus spine through my foot, dried Holly leaf through my foot, and burned the whole bottom of my foot walking on sandstone in Utah I'm good.
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