They have them, at least where I am in Canada.

Or you could punch holes in a regular bag when you need one. That saves the space in your pantry for other things.

yup.

Ziploc bags are easy to open and close - punching holes would be tedious.You can get ziploc bags with holes of different dimensions (1mm holes to 4mm)and if you get a bag with a lot of holes(high density punching -holes very closeto each other) or a bag with a few holes - depending on the type ofvegetables and spinach you want to store - would make life a lot moreeasier.

Punching holes is tedious? You are already standing in the kitchen. Roll up the bag, reach into the drawer, get a knife, stick the knife through the rolled bag in 4 or 5 spots, unroll the bag. Job done.

I tested this just to make sure. Took less than 10 seconds. Not exactly what I call tedious.

I AM TALKING OF READY MADE PUNCHED ZIPLOC BAG AND NOT HOME MADE STUFF.THESE TYPES OF HOLED ZIPLOC BAGS SHOULD ME MADE AVAILABLE IN DIFFERENTVARIETIES CLOSELY PUNCHED OR SPARSELY PUNCHED DEPENDING ON THE TYPE OFVEGETABLES YOU WANT TO STORE.

It's really not that difficult to punch holes in a plastic bag. Even for the small investment necessary to bring such a product to market, it's doubtful there would be sufficient customers that are too inept, or too lazy, to punch their own holes for the zipper bag company to make any money from this.

I PUNCH HOLES INTO A ZIPLOC MANUALLY - IT WOULD MAKE LIFE EASIER IFSUCH STUFF IS AVAILABLE OFF THE SHELF

According to a TV brand, wilting of vegetables is caused by ethylene released from the vegetables, as well as moisture lost. You need to keep the moisture in and ethylene out. What they did was line bags with an absorbing chemical.