We have been looking to do something with our entrance patio flooring. We have some options to have it re-layered with concrete, but we would like something that is better looking and have considered tiling. Is tiling a good option or are there other alternatives - we are worries about the "slip factor" with tiles, especially with snow/ice. Is there a specific type of tile cement that must be used for outside? I know this may be subjective, but just looking for ideas where some have had success.