We write everything down in a spiral notebook. That way DH can be as messy as he wants (LOL) and then I transfer the info I need from that onto a log that is broken down by hour so I can send it to our nurse and take to our Endo appts. We do not write anything down while we are out or overnight, just review the meter and remember carbs/insulin given and write it down when we get home or get up in the morning. I just got 2 free One Touch Ultra Smarts (with the coupons from last weekend's paper!) where you can actually enter insulin doses and carbs into the meter, so I will start using those after our appt Monday (so that we start after their download) and then will hopefully remember to enter stuff when we are out that way instead of having to guesstimate on times. I also download his meters into my computer so I can look at graphs etc. I also enter the insulin, carbs, A1C, etc into the program so I have a total picture.