I know we've done the slippery deck recently, but I wasn't paying attention because it never freezes where I live. But, it does at our new house, where she lives, and she has a job that forces her to keep farmer's hours. So the wood decks tend to have thin but treacherous layer of ice in the early mornings. Note that we're not talking about snow, just frozen dew or possibly frozen rain.
Standard options I can think of are self-adhesive non-skid strips, or paint with sand in it. Wondering whether either or both are subject to ice-over if enough water accumulates to fill the porosity. Also wondering whether they pose a significant obstacle to sweeping.
Any comments on benefits or drawbacks of either approach, or suggestions of other methods to deal with the issue? Rugs? Some form of electric heat?