I am hoping you can help me. My mom read a book to me as a kid but I cannot remember the name or find it on Google for the life of me. It’s driving me crazy! 
It is a picture book about a man who owns a grocery store and a cat lives there (or comes to live there at the very beginning maybe). More and more cats come to live at the store until they are causing all kinds of trouble for customers, like knocking stuff over. I remember one page was a drawing of a cat popping out of the fish kept in the ice section and scaring a customer. The store owner decides to give away a cat with every bag of groceries purchased. One page is a customer (an older woman I believe) taking home 2 cats with 2 bags. The bags are brown paper bags. It ends with the store owner only keeping the original cat. I think the original cat was an orange tabby but I am not sure about it, sorry.

I remember the pictures take up the page or at least most of it.

It was a softcover book (or at least my copy was).

My brother and I were born in 1993/95 and both remember it so I’m guessing it was read to me in the late 90’s or maybe early 2000s. I think it wasn’t an older book when I read it because of the drawing style- at least it didn’t look old fashioned. It’s a colorful, but not unrealistically colorful picture style. Not overly artistic/beautiful. Just fun, clear, and kid-like pictures. 

The book is in English, but I don’t know where it was published.

I’m guessing it was not a super popular book because I have googled it like crazy and can’t find it.