I seriously started weighing myself about 18 months back. Since then, unless there is an emergency that prevents me from doing so, I weigh myself every single morning at the same time. Recently, I was gifted a withings weighing scale, the Withings WS-50. It is beautiful to look at and very easy to set up. When you first use it, you have to put in your age, height and gender so that it can calculate your BMI.
Once set up, you just need to stand on it, and it turn on automatically. It measures your weight in Pounds or Kgs depending on your preference and also your body fat (a measure of how much of your body is fat) and your heart rate. The heart rate in particular is pretty amazing as previous scales required you to hold a handle so that the electric charge could be complete. This weighing scale does away with all that. It has an app that you can download for your phone and the data can be synced wirelessly or through bluetooth.
The app itself then can connect to your Apple Health or other services like myfitnesspal, mapmyrun, garmin connect or mynetdiary. It supports multiple users, up to 8 people, and recognizes the user automatically. It also understands when a new user who has not been registered before weighs herself and stores the data as unidentified. All in all, this is a very easy to use, simple weighing scale for anyone who wants to monitor their weight and body fat regulary.