I've talked about Larry Swedroe's approach a couple times before. 70% bonds to preserve wealth and lower volatility. Plus 30% of the most volatile uncorrelated assets you can find.
His approach has intrigued me but I've always wondered if it's more suitable for a larger egg. Reminds me of a math joke... 1==2 for sufficiently large values of 1 (or, if you prefer, 2+2=5 for sufficiently large values of 2).