What do you all use to hold the small amount of items the small dometic frig fit on te two shelves and bottom? What do you actually usually put in the frig vs. a cooler. I am wondering if keeping two small blue ice pack in the frig will help the 'air' return to cold(er) once the frig has been opened. Do you actually open your frig more than 2-3 times per day and have it replace it's coldness in an hour or so? I still need to check mine for sub par operation.