I believed MyFitnessPal's "Sedentary" (1.25 x BMR) multiplier included all the activity you would expect from a desk job, minus exercise. Thus, you would only log exercise or special activities.
However, the WHO estimates a sedentary individual burns (1.53 x BMR)--closer to MyFitnessPal's "Lightly Active" (1.4 x BMR) multplier and they don't actually include any exercise in their figures--just sleep, personal care (dressing, showering), eating, cooking, sitting, household work, walking (to/from and within an office), and lazy leisure (reading, chatting, TV, Internet, video games). That's pretty sedentary!
http://www.fao.org/docrep/007/y5686e/y5686e07.htm
Q1. Why does MyFItnessPal use a smaller multiplier than the WHO?
Q2. This implies we should log ANY walking or cleaning throughout the day--thoughts?