Re: Yup an In-Laws thread ..
Sweet thread DaffyDuck. Something that worked for me is remembering birthdays - not just the immediate family but also the aunts, uncles, and cousins. Even an email greeting is fine, you won't believe how many brownie points you can get just for remembering. Also simple things like helping in the housework on your own, spending time with older family members, being friendly to everyone goes a long way.
Along with all this, you should also set boundaries to save yourself future heartache. Be yourself - if you need to spend an evening every week working on your hobby, or going out for dinner with friends, just do it. If you want to wear jeans, start wearing them. A lot of girls have in-law issues because they set unreal expectations - they are the sharmeeli, obedient dulhan for the first few months and then assert their independence all of a sudden. That is hard to digest for the family and leads to unnecessary bitterness.