Lol, No you can not make your breasts smaller by putting lotion on them. :P But, You can get a breast reduction. :]
No.
Nothing specifically as such. However, losing weight may make them smaller because breasts are largely made of fatty tissue.
No.
No. It can temporarily make breasts appear smaller, but there is no way to decrease the size of breasts except weight loss or surgery.
No. There is only one way to make them smaller and that is surgery. If you are overweight they might get smaller if you loose weight.
It is not that they are getting smaller, it is that the breasts are going back to their normal size. Birth control can sometimes make the breasts swell, just like right before your period. They will not be any smaller then before birth control.
You can buy bras that push them down.
No, it will actually make them smaller.
No, but it might have an effect of bringing them into your body more.
Breast size is a genetic trait that cannot be helped much. However, excess body fat can make your breasts slightly larger than they would be if you were at a healthy weight (although you will have excess body fat throughout your body not just your breasts), if this is the case regular exercise and a healthy diet can make your breasts a bit smaller as well as the rest of you.
Running