Oh goodness. Where to start? Well, first, not to sound rude or critical, but it sounds like there needs to be some "people training" asap!! Why are clothes, shoes, coins, dollars, etc, left laying around for her to eat? I guarantee you she wouldn't be eating money at my house!!
Aack!!! She's a cocker spaniel, so it's not like she's a really tall dog, able to scour high shelves, tops of washing machines, drawers, and closets. Sounds like she's scouring the floor - and floors should be dog-proofed. My first comment - it's not her fault, it's yours.
I read your other post, and you said Molly's fat. Does Molly get out for lots of exercise? My guess is no, or clearly, not enough. I'm thinking Molly is bored out of her mind, and looking for things to do - so she's making her own games and entertainment. There's a saying that "if your dog is fat, you're
not getting enough exercise". And if you think about it, it just may be true. My bet is, if you started getting Molly out there, walking her, spending lots of time with her, playing with her, training her, using that cocker mind (and they're fantastic at scent games!!), she'd be a lot better in the house - cuz she'd be tired and relaxed - and way less inclined to go hunting for trouble. And, I'm betting if things weren't left around for her to get into, some of your problems might go away - am I right?
So - to start, how about picking up anything possible that might go into her mouth. Make it impossible for her to fail - set her up to succeed. Clean up anything in the path of "Hurrican Molly". Assume it will get eaten, so if you don't want it destroyed, don't leave it around. It's not her fault. Then, make a committment to share your time with her. Yelling at her and then putting her in her "cage" is not a solution. Too late. You're punishing her for your
mistake. You (or some family member) left the stuff out where it shouldn't have been. Next time she eats something, who ever left the stuff out should get in the "cage".
Spend time thinking about what you/they did - and next time, you/they might put stuff away.
And - once free from cage punishment time, take Molly on a 30-40 min walk (that should happen every day, anyway). Maybe an extra walk, or 30 min of ball, or maybe play some 'find it' scent games with her - whatever her favorite games are. What are they, by the way? You didn't say much in the intro post, except that she's 6 yrs old, was fat and her name was Molly. If she just kind of hangs out and you don't do much with her, start now. Cockers are fabulous dogs (I had one for 17-1/2 years). They love attention, love to play, always up for anything - so give it a go. My bet is, she's looking for something to do - and maybe all she wants is your attention. Even if you're only getting mad at her, she's still getting your attention when she gets into stuff she shouldn't. Give her loads of love when she's being good, and take away all the stuff you don't want her to have.
Does she have lots of her own toys? Do you ever give her kongs stuffed with treats (altho you then have to take her on extra walks to work off the extra calories)? You could find or make treats she can eat, stuff the kong, freeze it - and it will keep her busy for a loooong time. Exercise her ahead of time, maybe when you're leaving, then give her the kong - hopefully by the time she finishes, she'll be too tired to go looking for trouble. All kinds of ideas - but it has to start with picking up the stuff off the floor. It all comes back to ... it's not her fault. It would be sad to think she might lose her home cuz humans couldn't pick up their things. I have German Shepherds - you think a Cocker Spaniel can get into things? I had to change doorknobs cuz one of mine started opening doors at random and helping himself to whatever he wanted - and once he actually opened the front door and let himself out. Please set up little Molly to succeed, I know you can do it!
If I'm way off base and you can provide way more detailed info so we can better help you, please do. I only responded based on the little you said. I'm sure others will chime in also. Good luck!