Put it in your inbox, and reward yourself
Of the many suggestions I've seen in threads past on how to develop the habit of checking a tickler daily, I recall two that stood out for me:
1) Put the contents of the next day's tickler in your inbox at the end of the day. Basically, at the end of your day, grab the tickler for the following day, and just dump it into your inbox. Then that stuff is there to be processed first thing the following day. If you have a home and work tickler, this also assumes that you have a home and work inbox that is processed at least once a day.
And to make sure that you remember to dump that tickler into your inbox every day:
2) Reward yourself by sprinkling treats in random tickler files. $20 bills work. So do Starbucks cards. So do nice little notes to yourself. If you check it on that day and find your treat, you get to keep it. If you miss a day and there's a treat inside, you don't get to keep it, but have to do something else with it (put it in another tickler day, give it to a friend, etc.). And if you're prone to cheating, have someone else sprinkle your treats in the tickler folders. Positive reinforcement helps to create good habits.