These are all done from between 1-3 sets (10-15 repetitions). I usually start with 1 set then add a set each week. Once I get to 3 sets I increase the weights. Right now I'm using 3.5 kilos (or 7.5 pounds).
For all the exercises I've included a photo or a link to a video explaining how to do the exercises. This may seem like a simple circuit (and it is) but it burns like crazy!