I am 43 but look like late 30's. I like to dress conservative at times, trendy at times, glamorous and sexy at times. What is appropriate or inappropriate to stay looking younger and in fashion without looking like I'm trying to dress like my college age daughter? Mature, but not old?

innapropriate : studded belts??? haha. umm anything too short or too tight....there is a difference between close fitted and tight and there is also a difference between young...and young LOOKING!!! some basics in a few funky colors paired with neutrals can do the trick as well as an unusual piece of jewelry can make you look mature (don't run around with a padlock choker and bangle bracelets) and still stylish and fashionable. Same for jeans. I'm not too hot with white jeans but grey is nice...as well as very dark blue jeans. they look nice,classy but not too ''I'm wearing dark pants. ooh...''
so there you go. hope this helped a little! ^_^