What is th best present to give my daughter's mother?

You can get her flowers of course! Flowers really brighten up a women's day. Some ideas are..getting a certificate to the spa for pampering, nails done or a massage. A giftcard to your local mall so she can have a day of shopping for herself. If she likes something inpaticualar like jewlery, maybe get her a ring or necalace. Women also love candels. Take her out to dinner.