Moisturise, moisturise, moisturise and remember that your face doesn't end in the line on your chin where it then slopes to become your neck. The decolletage is a very important area to moisturise as it is that area which becomes prominently aged in women's advanced years, specifically because of lack of moisture. And, don't pull on your neck. Propping the chin with the arms if a favourite defiant pose of every young person but this can cause regrets later when the skin gets too loose ergo sags! Also, those little spots where we love to dab perfume also get dried because of this e.g. behing the neck, in between the breasts. Once again, moisturise! I also find that the hands betray a woman's age, no matter how much aid her face has actually had, surgically or not! Having said all that, I think that part of the benefit of getting older is that we become more comfortable in our own skin so if we enrich ourselves through knowledge and experience, then we add more value to to ourselves as we grow older.