The National Home Show is on this week, providing homeowners with ideas on how to improve their humble abodes. Back in the early 1970s suggestions were offered on how to raise the money to afford new wood panelling and a basement mini-bar, such as buying your own convenience store franchise. If interested, Mac's would set you up in an idyllic suburban setting straight out of a 1950s magazine ad. No overflowing garbage cans, no......