Wow this bag holder is awesome ! You simply open it up and swing out the legs to make a cross. They stay put and stand on the counter, holding up your bags beautifully, but didn’t worry about it falling over. It did take a little effort to fold the gallon bag edges over the holder legs, but it didn’t take long & worked perfectly.
https://www.amazon.com/Bag-Well-Sealable-Holder-Storage/dp/B0051X9D2M

