Mine is to not use stop losses.
Use a protected put or collar strategy to set a firm floor on your worst possible performance. These hedges also appreciate due to the sort of "volatility events" we worry about, especially when you buy them during low-vol times. At one point in March, I had a collar position where both the stock and the option position I bought as a hedge 12 months ago (!) were worth more than I had paid for them. That's a better spot to be in than liquidated, because I could either go to cash or sell my hedges for a profit.
Set a trigger point at which you will exit your hedges and just hold the stock. Mine is 20% down from the most recent high. Basically, if I can avoid the first 15-20% of losses during the sort of routine corrections that happen about every year on average, I'll do extraordinarily well.