Question:
After the shabbos meal, there are leftover bread pieces on the table. Am I allowed wrap up the disposable plastic table cloth and discard them, together with the other disposable cutlery?
Answer:
Pieces of bread that are larger than a kzayis should not be discarded in an embarrassing manner, such as placing them directly in the garbage with all the dirt. However since your instance the bread is wrapped up in a tablecloth, even though it is being put into the garbage, it is permitted since it is wrapped up in the tablecloth it is not considered be disposed in an embarrassing way.
Have a good Shabbos
Sources:
R' Y. Cahen shlit"a