Everyday on 2 different scales. I find it hard to trust either one. I think I may need to switch to a new routine and a new scale (if I could afford one) because I get so frustrated if I don't see change for a day or two. OR if the weight difference between each scale fluctuates... lol I end up confused. Did I lose a pound or gain a pound.

At least once a day. I always weigh myself first thing in the morning after I've gone to the bathroom so it will be the lightest/most consistent weight. I will also weigh myself later in the day out of curiosity, but don't count that number. Days where my weight goes up or stays the same are discouraging, but days with even a tiny loss are awesome and keep me motivated. :)

I've tried to do it just once a week, I even put my scale in the back of the top shelf of my linen closet to hide it from myself. The next morning I was climbing up there to dig it back out. lol

I weight sometimes twice a day. In the morning is my lowest weight but if I weight the same at night, I know I've lost weight. I am almost 2lbs heavier at night than in the morning.