Homemade potting mix with readily available materials
-Don't have to order anything online
-Commonly available ingredients from retail nurseries
-Provides good drainage for palms and cacti, but isn't too light for other plants.
-Provides necessary nutrients and micronutrients to relieve dependency on fertilizing.
-Low risk of diseases
-Can also be used for seedlings. No damping off fungus problems or other garbage.
I'm sure some of you out their have your own magical mix. If it fulfills my requirements I'd love to hear about it. If not, I'd like to know what its drawbacks are.