Number one tip, buy a bong that's easy to clean ! (KISS)
With an easy to clean bong, a little salt and alcohol will clean the bong in under a minute. It will look brand new.
People don't realize how unhealthy it is to use a dirty bong to smoke. When you have a complicated bong, you'll spend a lot more time cleaning OR you'll go days without cleaning which is a HUGE no no... Smoking a simple
clean bong is a lot healthier than smoking from a complicated dirty bong.
A bong like this is perfect... pic taken right after using and cleaning in under a minute, it looks like this every time I use it.
Note: I use rubber stoppers to plug the top and bottom of the bong, this allows me to shake the salt and alcohol without making a mess. They also sell glass stoppers...
Note 2: If your wondering what the bowl is, its a Grav Labs 14mm helix. Its a one hitter and its perfect to smoke without smoke escaping. You get one good hit that clears the entire bowl. I don't know how you guys smoke out of those salad bowls you put on your bongs !