Allow salt to dry. This makes cleaning it up easier and more effective. Using a broom, sweep up the loose salt. If some of the rock salt has dried into large chunks, break it up with a metal shovel before sweeping it up.
Place used salt in a bucket or bag in order to use it again. Debris mixed in with the used salt will not affect its performance if reused. And, although it might appear dirty, the excess debris also can provide some additional traction on icy surfaces the next time you use it.
Once temperatures are high enough to spread water on surfaces without re-freezing, remove salt stains from walkways by pouring a bucket of water on the walkways and driveways. Use a broom to loosen any excess build-up.