wendy - you are right, if I said I wasn't seeing them, DH probably wouldn't either. However, That's why I feel it's such a responsibility not to do that, in a way. I want him to have a relationship with his parents, I think all of them would be really sad if it didn't happen. I accept that it will never be the best, most brilliant of relationships and that I can't change them - they are in their 70s! I do, however, need to do something to protect myself from the devastating and constant unsolicited advice, criticism and orders, so minor modifications are what I'm shooting for I guess!
farnorth DH is aware of how difficult I find them - it is something we discuss quite openly, and with BIL and his partner too, who find them equally challenging. I think he finds even the act of discussing them difficult, however. He feels guilty both ways. He is quite self-sacrificing (a result of their upbringing) and gets upset when he thinks there is a conflict between his duty to them and to me, even though I am careful never, ever to frame it as a choice.
emily - that link is really helpful, thank you! I shall gird my loins and give some of the techniques a go, I think. Your conversation tips are also really helpful - I will try to develop more involved lines of discussion on subjects where they are more comfortable.
I like the idea of creative deviance, and it's something I've tried in the past, but the trouble is MIL sees it as a way to offer more advice. So the way I crochet will be wrong, or the tapestry will be wrong. Often, the 'wrongness' is just that I don't do it her way. My own grandmother was a seamstress and I was brought up with very tidy habits of needlework: on a tapestry, it drives me crazy if all the stitches don't lie the same way. MIL gets cross about this and tells me not to bother because she doesn't. She makes such a big deal of it that it puts me in a position where I either have to defy her quite obviously or I have to do it in a way that I find messy just to keep her happy. It is the same in the kitchen, so I always try to do most of the cooking before she arrives to avoid being stressed - it's a bit of a shame, because it's one area where I could really learn from her. She is a better cook than me, but she is just as domineering with BIL's partner, who is the best cook I know.
Even when I try to escape to my garden (which is my pride and joy) to 'do the watering', but she follows me out there when I'm just trying to get away for 2 minutes, and marches around giving me yet more advice.
I grow all of my own veg as well as having a pretty flower garden - she never grows veg, yet she assumes this position of the knowledgeable critic on the basis of talks she has attended. So we will be in the greenhouse, and she will be bossing me around, even though she's never had a greenhouse herself and doesn't really grow from seed! I realise it sounds minor, but I feel like even the things I'm demonstrably good at are areas where she is constantly critiquing.
It really gets to me, to the point that I will be angry and threatened and very close to tears after a few hours. I realise that I am too insecure and thin-skinned about this, so if anyone can think of ways of being thicker-skinned, I would appreciate it.