READER CHIMES IN WITH FRIDGE ADVICE Dear Heloise: For many years, I have admired the columns written by you and your mother. You both were ahead of many in recognizing the need to protect our environment through our daily actions. Common sense was often the answer. That is why I found your advice today regarding sticky refrigerator shelves not in keeping with your good advice in the past. You recommended a single-use plastic product to protect refrigerator shelves. My advice is to show household members how to clean off items before placing them in the refrigerator. Thank you. — Judith MacLel…