For me, the PI Barrier shoe covers, that covers my summer bike shoes, work fine. You can see them here and they are on sale. There are other shoe covers you can find as well, and they would work better than taping over the vents on another pair of shoes. Adding more socks wouldn't help - you do NOT want your feet to sweat in cold temps.

Below 45 degrees I use chemical toe warmers on top of my socks, the Barrier shoe covers over my regular Mavic shoes, and 1 pair of thin wool socks. This works for me unless it is really windy then I will add toe covers to my shoes underneath the Barrier shoe covers. There may be less expensive shoe covers than the Barriers, but I can't speak to how well other shoe covers might work. I do not think the shoe covers would do so well below freezing though I could be mistaken. Others can speak to riding in those temps, my asthma prevents me from going there.

Quote Originally Posted by Megustalaplaya View Post
I've been looking for winter shoes as I have figured out that my summer ventilated shoes are the issue with my cold feet. Only problem is that I have already spend quite a bit on winter riding apparel that new winter shoes are now not in the budget. I don't have a lot of room in my current shoes to add layers of socks. I've tried chemical toe warmers in 29 degree weather and they didn't help at all. My toes and fingers were so cold they were hurting! Wonder if picking up a used pair of shoes in a larger size to duct tape the vents and layer on the socks would get me through the winter or at least until winter shoes start going on sale in late winter/early spring?

Speaking of winter shoes is there such thing as a winter road shoe? All I have really seen so far are winter riding boots for commuting in slush or mountain biking.