You are always making a first impression; make it count.
There’s a saying that you never get a 2nd chance to make a first impression, and that is so true when you are dealing with someone that you have interacted with at least one time before. However, any time you leave your house and go somewhere with other people, there is at least one person that is seeing you for the first time. Realize that you are always making an impression even when you don’t want to.
Put on the nice jeans instead of the pyjama bottoms when going to the supermarket, or on an early morning flight (or anywhere outside of your house, really). Comb and groom your hair; put it in a ponytail, or under a hat instead of wearing hair curlers to a PTA meeting at your kids school (or anywhere outside of your house, really). Those fur covered slides… leave them at home or at least in the car instead of wearing them to a job interview or a formal black tie dinner.
Make every impression count. You never know where you will meet your next employer, business partner, client, spouse or other person who will help you get to the next level where you want to go in life. Don’t be overlooked, because of the way you look.