Where do i buy clear contact paper?

clear contact paper is commonly used in preschool arts and crafts projects.Where do i buy clear contact paper?
I have found this at aces hardware stores,school teacher suplies,art supplies.. latest buy was aces hardware..Where do i buy clear contact paper?
stationers and diy centres
I bought some at Wal-Mart. It was in the section with the liners people use to line drawers and shelves.
Rymans, whsmith, office world, office supplies and Staples

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