maggie_1936

same as debra k

noahscats7

El cheapo vinyl placemats is my go to choice.

patsynel

I use 2 pieces of thick cardboard, wrap tape around them and then make a sleeve out of fabric and put the cardboard in that.

meant2be

I have the lumber yard cut their thinnest plexiglass to the size I need. Average cost is $1.00.

Mousie

you can find these super cheap at thrift stores and cover it to
match the inside of your bag. If you want, you can even
double the layers of the plastic.
It depends on how stiff you want your bag to be.

mammab

I have been using floor mats. I get the kind of mats that fit together for kids or exercise rooms, cut off the little tabs and cut a piece to fit the bottom. Works great no sagging and it is washable without removing the mat.

newestnana

I have purchased cheap vinyl tiles at Home Depot or Lowes and cut them to the size of the purse bottom (use a utility knife, not your rotary cutter). Cover it with an envelope of your lining fabric. It can be removed for washing as needed.

Dordee

I have used old cricuit mats that I covered

solstice3

After the elections you can usually get plastic corrugated campaign signs for the asking. Cut them to size and wrap with a piece of fabric.

jeanne49

I have a friend who used the plastic sheets that are used in drop ceilings, these are the ones that go over the lights. I think they are about 2' x 4' and cut very easily with a utility knife.