I though i would list my partial profit taking strategy for you to see the benifit of it.
My goal on every trade is 50 pips, and i trade off the 5 minute TF for entry but refer tothe 1 hr and 4 hr chart to get an idea of what range to enter in. I use fib levels combined with RSI to find my entry and profit taking points. I use a stop loss of 50 pips as well. But this is more about profit taking as opposed to my method of trading.
Trade goal = 50pips
Should the trade reach 50 pips, I close out 1/2 of my position, move my SL to break even. So now no matter what i have made 50 pips. the balance of the trade i leave to run its course with profit levels set either around the 100,161.8 fib extentions.
Based on the bullish divergence that is present in the long term charts, i believe that the trend will go up, of course not straight up, but not down to the 139 or below in fact i dont think we will see 142 again this week or at least not untill we see 150+ first.
so as an profit taking example, i had only 4 trades above 143.00, and as i am expecting a pull back during the asian session into the 144s or perhap slighly lower i decided to close off those trades at a profit level of 147.50
buy : 1/2 off : close : balance pips
#1 143.21 : 50 : 147.50 : 429
#2 144.87 : 50 : 147.50 : 263
#3 145.50 : 50 : 147.50 : 200
#4 146.00 : 50 : 147.50 : 150
Profit taken 200pips 1042pips
No losers today, luckily;) but today had the trades turned against me, at the very least i would have banked 200 pips. I trade in lots in multiples of 2 but really as long as your not trading the smallest trade possible, you can apply this technique. So trade # 1 was 4 lots, closed 2 off at + 50 and let the remaining 2 run, trade #2, 3 was for two lots and the last one was only for 1 lot.
Profit taking is just as important as your entry, and your method of trading. #1 rule is to protect your trading capital.
Cheers, hope you might get some ideas from this.