I have some PI toe covers (size small I think) that stay on just fine. Those, along with wool socks and charcoal toe warmers keep my feet warm enough for the amount of riding I typcially do when it's freezing or above. I have some PI shoe covers, too, but I hate trying to get them on and usually just opt for the toe covers.
Live with intention. Walk to the edge. Listen hard. Practice wellness. Play with abandon. Laugh. Choose with no regret. Continue to learn. Appreciate your friends. Do what you love. Live as if this is all there is.
--Mary Anne Radmacher