If you are moving into a new house or apartment and you want to make a clean start and have a no-shoes rule, you have an ideal opportunity to kick it off with an housewarming party.
The best thing to do is to indicate clearly on invitations that you will be requiring shoes-off. That way people will have no surpises. They can bring slippers, wear clean socks with no holes or a floaty skirt that looks great with barefeet (Trinny and Susanah actually recommend that hostesses of dinner parties should wear a long skirt with barefeet or slippers).
Having an housewarming party is such an excellent way to send the message that your new house will be a shoe-free zone. Even those of your friends who do not come will see on the invitation that you want shoes-off.
Requiring shoes-off at a housewarming party sends the message that you are really serious about the rule and that it is not just an exception for a wet winter evening. After all, some people with shoeless homes actually make an exception and allow shoes-on in parties. However, having shoes-off at an housewarming makes it clear that you want the house to stay as it was when you bought it.