Snow Shovels and pushers, Snow Blowers
See also Snow Removal

De-icders:
Comparing Five Common Chemicals for deicing at thriftyfun.com
Sodium Chloride (NaCl, a.k.a. Rock Salt) - Cheapest - Not effective below 25°F
- Can leach into soil
- corrosive to paved surfaces

Calcium Chloride (CaC12)
- Good at temperatures below 25°F
- Less harmful to vegetation.
- About three times more expensive than rock salt, but you only need to use 1/3 as much it.

There are many more.

See Ice Melt products -

Traction :
Use sand, kitty litter, bird seed, chicken grit, oyster shells.
See the Ice Traction page

Links:
Snow on roofs
Snow Removal Tips | Consumer Reports
Removing Ice on Sidewalks and Driveways | ThriftyFun
Best Rock Salt & Ice Melt Reviews - Consumer Reports
7 Tips For Dealing With Winter Weather Conditions - The Simple Dollar
Communications Winter Travel Tips and Information
Frequently Asked Questions - Sidewalk Snow and Ice - OxyChem Calcium Chloride