As Chinese military general Sun Tzu's famously said: "Every battle is won before it is fought." The phrase implies that planning and strategy - not the battles - win wars. Similarly, successful traders commonly quote the phrase: "Plan the trade and trade the plan." Just like in war, planning ahead can often mean the difference between success and failure.
Read more: Risk Management Techniques For Active Traders http://www.investopedia.com/articles/trading/09/risk-management.asp#ixzz3knS3Z7k7
And I did plan, but changed it without plan :-)