Shovel the snow carefully. Do not lift more than a shovelful at a time, as that can lead to back strain. Newer snow shovels with special ergonomic handles are best, as they have taken back strain into account. If a straight metal "old-style" snow shovel is going to be used, try to use a natural pushing motion and keep the back as level as possible.
Clear the snow down to the sidewalk surface if possible. Many times a winter snowfall begins with a layer of ice. If the ice is not too thick, apply salt or de-icing compound across the icy surface. Sand and cinders will also remove ice and give pedestrians traction on the sidewalk.
Break away heavy ice. Use an ice chipper if one is available, or a straight edge hoe. A regular shovel or spade will also suffice, but do not dig down with too much force, as that could damage the sidewalk.
Use a strong board to pry loose large deposits of thick ice and lift with gloved hands. Do not try to use a shovel on large chunks of ice. Instead, break the large pieces into smaller pieces with an ice chipper or garden hoe or shovel.
Snow blowers are another option for getting down to the subsurface ice. Once the snow has been removed and the bare sidewalk surface has been reached, coat the area with sand, cinders or salt melt compound to prevent additional ice buildup after the sun sets, and temperatures cool.