Before taking your temperature, a minimum of 3 hours consecutive sleep must have been had.
If you use a glass thermometer, shake it down the day before.
Take your daily temperature straight away when you wake up (before any other activity such as going to the bathroom).
Record you temperature soon after it is taken.
Try to take it at the same time each day, when you wake up (instead of getting up).
Make dots or cross on the appropriate temperature and connect the dots with straight lines.
If the temperature falls between two numbers on a glass thermometer, always take the lower one.
Most digital thermometers keep the temperature on it until the next use.
Note events such as stress, or illness in the Others row.
Temperatures taken late should be noted in the time taken row.