I also chlorinate with bleach.
I either get 10% from Walmart, or 12% from the local hardware store when they have it. When I took over this pool I was doing it all wrong, based on conventional pool practices. I found troublefreepool.com and began following TFP practices and the pool became easier, cheaper, and the water has never been nicer.
Using test strips and chlorine tabs had my stabilizer levels (cyanuric acid) through the roof which meant I needed more and more and more chlorine and eventually meant I needed to drain the pool to lower the cya which meant I needed to buy more chemicals all over again...
These days everything is stabilized, takes a little dose of liquid chlorine each day, a little muriatic acid occasionally now and then, and about once a year I have to adjust cya and total alkalinity levels.
If you switch to liquid chlorination, you can always use household bleach in a pinch, as long as it's unscented, not gel, etc.
I use a Stehnner pump that is programmed to automatically dose the LQ each day, after daily testing long enough to determine the pool uses about half a gallon each day. Now I just test about once a week. I use liquid regents and vials and perform tests in the same manner a pool store would.
30,000 gallon in ground pool.