Recording 2nd job hours

Thanks for the replies, my main job is not driving related and only counts towards WTD. I plan to drive maybe once a week but if I can’t get work could be 2/3 weeks apart etc so putting in 2/3 weeks of work into the Tacho could be a bit tedious which is why I was looking towards paper records but if needs be I’ll record them on paper then just sit there and enter them in when I drive.