<font color='#810541'>My log (kept in a spreadsheet) contains :
Date
Location
Fishing time (from, to)
Tide time / state
Weather (including wind direction/speed)
Methods
Baits
Catch
Comments
I find it is sometimes hard to fill in the log after a bad trip, but by doing so you at least know where not to go in future when conditions are the same. A log truly comes into its own in the second year when you can refer back to last year for similar timing/tides/weather.
Would be happy to email you the basic template I am using - drop me a PM</font>