Isn't the reason we appreciate old-timey D&D due to the irresistible tool-kit nature of the darned hobby? Why not scrap everything you've bolted on to your games through the years and start over for a change? Expunge every house rule, borrowed rule or later-edition rule that might be ingrained in your current games. Disregard assumptions and disavow accepted theorems; solve problems on your own. This might sound illogical. Why ignore such hard-earned knowledge and know-how? To me the question...