Radioshack, want to save you business? Turn every single one of your stores into a hackerspace. You don't even need much. Get a laser cutter, a 3D printer, a drill press, free WiFi, some tables, and a stack of arduinos and you'll be doing awesome. Then build an instructables-esque community website for people to show off their projects. I'll even consult with you guys on this if you make a big enough donation to the…
1. Sell off all the inventory.
2. Rebrand, lose the name Radioshack because it's the definition of cheaply made, overpriced garbage. It's embarrassing to even be seen in that store.
3. Go with a minimalistic store layout, like the Apple store (http://cdn.iphonehacks.com/wp-content/uploads/2013/11/AppleR...), because existing stores look like a warehouse or junkyard. Carry higher end phones, tablets, ebook readers, laptops, headphones and accessories.
4. Sell some cables and things cheap to get people in the door. Instead of selling an HDMI cable for $100, sell it for $5, so people walk in the door, and don't feel like they're being screwed over. Then, when they're inside, they can play around with the expensive hardware, and potentially walk away with a tablet.