I'm going to repeat what everyone else has said - let them give!
I don't see any kids in your sig, so don't know if you have any. If you do, think about it hard, and you'll understand. If you don't, take our words for it please, if the parents want to help and you don't let them, you'll be hurting them.
I love the idea of a compromise if you and dh feel you must... have dh talk to them and say "ok, we'll accept this gift if you let me come and do *this* work at your house", or make you a special dinner at our house, etc, etc. There are so many ways you can reciprocate that they'll appreciate (you and dh know best what they'd like). My mil LOVES when people come to her house and do work for her - she can't do most of it herself, and won't spend the money on hiring someone to do it, or sometimes it's just something little you wouldn't hire someone to do, but she can't do it herself. She then enjoys making that person a nice dinner as 'payment'. And she's a good cook, so it's a good deal!! Whatever... think hard, and you'll think of something they'd enjoy.
I don't see any kids in your sig, so don't know if you have any. If you do, think about it hard, and you'll understand. If you don't, take our words for it please, if the parents want to help and you don't let them, you'll be hurting them.
I love the idea of a compromise if you and dh feel you must... have dh talk to them and say "ok, we'll accept this gift if you let me come and do *this* work at your house", or make you a special dinner at our house, etc, etc. There are so many ways you can reciprocate that they'll appreciate (you and dh know best what they'd like). My mil LOVES when people come to her house and do work for her - she can't do most of it herself, and won't spend the money on hiring someone to do it, or sometimes it's just something little you wouldn't hire someone to do, but she can't do it herself. She then enjoys making that person a nice dinner as 'payment'. And she's a good cook, so it's a good deal!! Whatever... think hard, and you'll think of something they'd enjoy.