I seem to stick to the same ones all the time.
I only use organic ones and as my daughter in law gets a dealer rate on one local brand, this is the brand I use for a lot of things.
For shampoo, I have been using the same brand for a few years now and it is organic, cheap and available at supermarkets.
So, NO i do not often try new brands as am quite happy with the ones I am currently using.