Pick Out the Bits
Using your hand, carefully remove the larger and cleaner debris and other items that may be stuck in your broom. Use one of your vacuum's small brush extensions and vacuum the broom thoroughly.
Place the broom bristles under running water for a couple of minutes to remove any remaining dirt, debris and residue. This may take longer, so clean accordingly.
Let it Get Clean
In a large bucket, mix 1 part dish soap, 1 part bleach and 3 parts hot water. Allow the bottom of the broom to soak in the bucket for 15-30 minutes.
The soap will clean the broom while the bleach acts to remove bacteria and odours.
Place the broom under running water once again to remove all soap and bleach. The broom is done rinsing once there are no longer soap bubbles appearing.
Place the broom outside to dry in direct sunlight (weather permitting). Place against a fence or wall with the bristles facing upwards. The broom should be dry after a few hours.
Return and Ready
Once dry, return your broom to its usual hiding spot. It is now ready to be your right-hand man once again.