From BBC:

1 Don't skip meals!
2 Use smaller plates!
3 Count your calories!
4 Don't blame your metabolism!
5 Protein staves off hunger pangs!
6 Soup keeps you feeling fuller for longer!
7 The wider the choice the more you eat!
8 Low fat dairy helps you excrete more fat!
9 Exercise goes on burning fat, even while you sleep!
10 Keep moving andd lose weight!