There are so many brand names at Dollar Tree. Some vary by region and some come and go. These always seem to remain.
Glad 22 count snack bags. $1.00 (There is usually a Glad 20 count sandwich bag but my store was sold out.)
Glad 45 sq ft cling wrap. $1.00.
Reynolds 18 ft aluminum foil. $1.00.
Reynolds 25 count foil pop up sheets. $1.00.