That's the thing, most pets and owners stick to something particular they're used to. In order for them to try and introduce something different, it...
Your store seems to be a magnet for these people. I do have to admit I see some rather "questionable" people wandering around in some stores I go to...
It does make sense to have it separated by species. Other than that, I would have all dry together, and all canned together, sorted by brand name or...
