50% bagged potting soil, 50% fine grit of your choice... it's pretty simple. You can get away with shortcuts with easier plants (jade for example) but the more demanding ones will suffer if you don't get the drainage right. I would not recommend using dirt from your yard. Compost from your yard is fine as long as it's mature and insect-free and the particles are roughly the right size (not too huge, not too fine). Try to be consistent so that your watering is the same from one plant to the next.
I'm not sure why you have so many different ingredients in your garage other than lots and lots of experimentation, which should be a good thing in the end, and I would imagine that experimentation must have taught you something about which ones work the best for your plants. When you arrive at a satisfactory recipe, you will use up the bag in due time and have no need for or interest in all the other ones you've collected over time, except insofar as they may be interchangeable. My days of random soil experimentation are mostly over because I arrived at something I like.
I know this wasn't exactly what you asked for, but I hope it helps.
