Oh, the poor tab free tea bag. Well, there is!
Take your spoon (any type) and tie the string in a knot under the handle but before the cup itself.
This is your end result. You might be thinking, how does this help? Well...
Because the knot you tied is smaller than the concave part of the spoon, the loop won't slip off.
You can balance the spoon on top of the cup to make the tea.
Or use the spoon part to mix in sugar or milk. Enjoy! Congratulations, you just saved a few cents.