They also have tabs (Javel) in Migros and Coop, these are great for toilets, sinks etc and are easy to store and perfect if you have kids as have safety lid.
Coop have also started selling white vinegar which is great for cleaning, you can find it with the English foods (pickle, marmite, bisto etc).
We had to same question when we arrived as we do like a little clorax bleach in our wash. After many trips to the grocery, we finally found someone that introduced us to javel. I agree if can be a bit strong, but I find it works well. Wish I had known about the English Forum then!