@IsabelleJ removing all chairs in the house? :D
by making small changes, like taking the stairs instead of the lift.
@GreenGarnet
Sounds great!
@GreenGarnet
removing all chairs in the house should do it! hahaha
(or you could always just lie around on the floor then!) 
Getting up and moving around, taking breaks to stand up and walk for a bit if I've been sitting for long time. Parking farther away, taking an extra flight of stairs.
@CelestialStardust
Great ideas! Good luck!
For those that are or have a more sedentary lifestyle, one can make it a point to get up at least once an hour and step in place for 5-10 minutes. One can also do "Commercial Break" exercises.
setting reminders to take breaks from my desk and computer
@EllieKB
Wonderful idea!
turning off the TV
I can stop being sedentary by.....getting a standing desk! Which I just did...and will be assembling/putting it into use shortly!
@AlfalfaSproutDeux
Sounds like a sound idea!