Something to think about when selecting clothing: our aging mothers' particular wants and needs, as well as challenges. Can can they button and unbutton easily? What about hooks and eyes? clasps to necklaces? things that zip, button in back etc. etc. Do they want to downplay/hide certain parts of their body?
Senior advisor R, 98, has always had success with catalogs. And she always looks well-put-together. Check out the following favorite catalog sites--not aimed at older women but with today's styles appropriate for older women. Do this with your mother if you want to entertain her a bit. There's what counselors call "a hidden agenda" here. You also find out what your mother likes/wants and can easily order it later.