I print out a copy of my pairing when I start a trip and then keep track of the times on it as well as IMC, night, approaches and landings. Then, about once a month I transfer those to my big Jepp logbook. In the Jepp logbook I use one line for each day. If multiple aircraft or aircraft types were flown on one day, I list them sequentially in the tail number and type column and then in the to-from column I just list the whole days flying in one line. For example: IAH-MEM-EWR-YYZ. Then in the comments column I write the flight numbers and crew names and the pairing number. Has been working pretty well for me so far.