Toilet Cleaner
For regular cleaning (bi-weekly), use the toilet cleaner available in bulk at the Source.
Once a month or more frequently if the bowl is getting stained, sprinkle 125 gr of citric acid over the toilet bowl. Let it sit overnight. Scrub in the morning.
Drain Cleaner
Don’t wait for the drains to be blocked. Pour hot water regularly in your kitchen sink to dissolve soap and grease, and once in a while - usually once a year is enough, during winter, do a big clean:
Pour 2l of hot water down the sink
Close your sink
Fill it with 10l of hot water
Dissolve half a cup of crystal sodas (or baking soda if that is the only thing you have) in this hot water
Then open the sink and let the soda water drop slowly down your drain.