You can avoid injuries and bruises on icy roads only if you wear shoes with non-slip soles.
But often winter footwear slides as if it were not boots or shoes, but real skates. The sole starts to slide as a result of long wear. Here's what you can think of in such a case.
The easiest way
When you need to quickly get to a store or a parked car, it is quite enough to stick a patch with a fabric base on the sole. It is glued crosswise.
You might as well spray the soles with hairspray or treat them with raw potatoes.
But these are one-time methods.
An intricate option
You can walk a little longer on ice if you glue sandpaper to the sole. You will have to carefully prepare the surface, choose high-quality glue, and you should not take the cheapest paper.
Instead of sandpaper, you can glue felt.
Another way is to coat the sole with glue and then sprinkle it with fine dry sand.
You can use the shoes in any of the proposed options only after the glue has completely dried.
Cheap and cheerful
Another original method is to set fire to nylon tights and apply the melting material to the sole. When it hardens, the shoes will not slip.
It is worth remembering that any of the proposed options is short-lived and requires periodic renewal of the protective layer.