just got some cycling shoes, cleats and pedals this week, been out in them a few times now and i'm slowly getting used to them. however when i have to stop for traffic etc.. i like to keep one foot clipped in and push off the ground with theother to get going again. With cycling shoes i don't have any grip, underneath the toe is just shiney hard plastic no grip what so ever. Is there any type of rubber cover or something i can buy to help me toe off and simply walk easier in these things? my shoes only have a rubber knob on th heal to help me walk. thanks