The Boating Suite app allows captains to track their expenses, log their fuel and keep records of maintenance.

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Keeping a headache calendar or log might help track the time and location of a headache, each of which can be useful to doctors for making a proper diagnosis.

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Technologies like Splunk were built to help IT staff search and summarize machine data, but with just a small amount of enhancement web server log data can track in real time the flow of customers through pages, the products that are going into shopping carts, and the rate of transactions.

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Once at Garmin Connect (GarminConnect.com), runners can quickly and easily log their runs, track their totals, set goals, share workouts with friends and family and participate in an online fitness community of more than 80 million activities around the world.

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With Freshbooks you can track expenses, create time sheets and log hours on projects.

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People log on to Twitter to track everything from global conflicts to sporting events and natural disasters.

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Use a mileage log or app to keep track of your travel.

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The former is familiar with some of the terrain, having previously replicated his grandfather's expedition using the original log books and diary used by Heyerdahl, and taking the opportunity to track changes in the Pacific's environmental conditions.

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