Proposed potting mix
I grow some herbs and hot peppers in containers. (The sun moves and containers can follow it through the summer, and come indoors easily.) This is about the capsicums.
I've been using Miracle Grow Moisture Control Potting Soil (MGMC) and have had good luck. But I'm moving up in pot size and the stuff gets pretty pricey when you need a lot. In the Hot Peppers forum there are those that extoll the virtues of "5:1:1" bark fines:perlite:peat. I have lots of pine bark mini-nuggets that I can screen for the fines, and a few other things that I don't have to buy.
So this is an idea for an approximation of the "5:1:1" recipe, with more nutrients (notably the manure compost).
6 parts bark fines (1/2" screen)
2-3 parts MGMC
1 part cow manure compost
1 part kitty litter (calcinated clay)