You will need a cloth or tissue and some CIF or supermarket alternative. This will only work on the rubber or smooth parts, will not work on any cloth or material parts.
Put some cleaner on a cloth or tissue
As you can see a very common area that gets dirty
After a few wipes look how clean it is!
Remember, don't start rubbing the material or cloth bits with the CIF, it wont work and will probably leave marks! Thanks.
The creator of this guide has not included tools