#1 Clean Your Shower Drain
This cleaning process only requires baking soda and vinegar.
It is also a less messy way than using soap and also more effective.
Details here: The Efficient Way To Clean A Shower Drain
I have recommendation for you hopefully you might find useful. It is one of the most useful things i have encountered recently. It is a kind of holder which prevents detergent leakages, which used to be a big mess .. you can see this gadget here