I test a lot, like 7 or more times a day; however, I am insulin dependent. Before I was taking insulin my doctor had instructed me to test my blood levels once every two days, sometimes in the morning and sometimes two hours after a meal, it was my choice so long as I documented the time.
Having said that, how often you test is something that should be worked out between you and your doctor/diabetes nurse. How often a person should test really comes down to the medications the person is on and how good that person has been controlling their diabetes.
Now, while I am not suggesting that insulin is the answer, once I started on insulin (combined with diet and exercise) I was able to control my sugars. However I do this at the expense of testing a lot and by taking insulin with every meal.
I strongly urge anyone who is pre-diabetic or diabetic to take some classes. In many cases diabetic classes are offered at local hospitals and if done via a referral are often covered by insurance. In all honesty diabetes education really has saved my life.
As for keeping a log of my blood glucose tests I picked up a little pocket day planner for four bucks from Walmart. I have also tried some computer based record keeping, but I like the portability of my little journal (I put it in my pocket and take it with me most of the time, of course I usually have my meter on me as well.)
Like you, I think it would be a great idea for CK to add a spot in the daily diary for adding meter results and insulin dosage amounts. I would like that too. It would be great to have all of my important daily numbers in one place.
May all beings be happy!