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 is really “Why the Hell not?”.
Open your mind by beginning a new campaign with a clean slate. Dispense with the same old, same old. The idea is to reboot the way you currently play by using the Little Brown Books (or whichever particular rule set you prefer) as the only tools at your disposal. Even better use nothing more than Volume I, Men & Magic for your game. Indeed it can be difficult to complete such a mental shift, but the exercise may be both enlightening and gratifying. Some of you are doing this exact activity now, or have rebooted in the recent past. Through play and design you have likely explored new possibilities and realized much greater innovative potential.
The suggestion to restore to factory settings is in fact contrary to the very spirit of our OSR blogosphere and vast light-speed, information sharing network. It invites you to encapsulate yourself and not rely on the experiences of others, to segregate your creativity from outside influences. It's all about challenging yourself “How many brain cells am I willing to commit in order to make this pay-off?”. It might be high time for you to “Turn On, Tune In and Drop Out”. Did Sham just ask me to go away? No, not at all. You should definitely continue to visit this particular blog for more transcendent existentialism from time to time.