Dog chewing EVERYTHING!! ( Not a puppy)  

I recently moved from Kentucky to NJ with my 2 dogs. My mother ended up taking my dog Red because my dogs didn't get along. My mother has 3 dogs and Red is her new 4th dog. I adopted Red from a Humane Society Christmas of '05. They guessed her to be about 10 months old at the time. Three months after I found out my other dog Bella was somewhat dog agressive and began fighting with Red. I separated them after they had a major fight so they were never loose together in the house. Because of this each dog was brought out separately and I would play with them so they were never alone in the house without being supervised. When I would leave they would both be in crates. Red used to try to grab onto random things and try to chew them but I was always right there to grab a sneaker or any other random object. Most of the time she was just happy to lay on me and watch tv and fall asleep so I never realized that her grabbing things would be such a big deal. Anyway, Jan. 18 we moved and she moved into my parents hosue while I moved to another house with my other dog. Red has gotten along great with my paretns dogs but her problem is she's chewing EVERYTHING! She's now almost 2 years old and still chews like a puppy. So far she has eaten an electric blanket, Timberland boots, Berkenstocks, an iron, and a lot more-over $700 worth of items in the house! She hasn't even been there a month! I even came to visit and tried helping my parents work with her. I intentionally left my sneakers right next to me on the floor when I was on the computer. I knew she would go right for them so I went on the computer to wait for her. She I could discipline her. I wasn't on the computer 3 mins when I noticed she had quietly came in the room, took my sneakers and had already taken the laces out and eaten them. She is just that quick! Being that my parents have 3 other dogs in the house it's hard to watch her 24/7. She goes in the crate when they aren't home and at night when they are sleeping but even if they are just trying to cook dinner she grabs anything she can find. We've dealt with this with puppies but I have never had this hard of a time. Does anyone have any ideas to help us with this. My poor mother was trying to help me out by taking her but she can't afford to keep replacing everything! Luckily she is housebroken so she;s not going to the bathroom int he house but my mother said she would almost prefer that! By the way she has a million toys and things to chew on so it's not like she doesn't have dog toys to play with. She also has a big fenced in backyard to play in too so it;s not lack of excercise. Thanks for any responses we are desperate!!!