Bring water to a boil. Steep the tea bags in it and allow them to brew for about 15 minutes (or longer for stronger flavor).
Once brewed, squeeze the excess tea from the bags and discard the bags. Sweeten tea to desired sweetness.
Serve fresh and hot or allow to cool and add ice to serve it cold.
If you'd like, you could triple the bags (3 of each kind, 9 bags total) and brew in a full gallon of boiling water. Let it brew for several hours so all the water gets infused. Then wring out and throw out the tea bags, add sweetener (or add sweetener as you go), and enjoy!