1.   Bobek changes coaches the way others change skate blades.

2.   Change your blades at least twice a year, at the start of spring and of winter.

3.   In fact, Gillette discovered through consumer research that it should not be too overbearing in recommending when blades should be changed.

4.   It slices, it dices, it shreds and makes radish rosettes, just by changing the blade.

5.   Remember to unplug the saw when changing blades.

6.   When the knife tears the paper instead of cutting it, change blades.

7.   When the knife wrinkles the paper instead of cutting it, change blades.

8.   While some skaters change coaches as often as they change their blades, Kwan and Carroll were a model of stability.