Re: How to be a BUDDY of your mother in law?
Personally I don't think it has anything to do with taking her shopping or buying her tofa's, is that what you do for your mother too?
*You need to go into a marriage thinking of her as your own mother and treat her just like her own daughters would. Like make sure to be in the same room as her as much as you can be, watch tv, read books/newspapers together, take her out to lunches. Let her tell you her long tails from when she was young, and all. *
Take it upon youself to be the best daughter that she ever had.