My daughter is marrying a man who has been also married. They both have everything for their household, the question is; how can they politely ask for cards and not presents? Or is there a polite way ?

Just say please no gifts on the invitation lol

The most formal etiquette on gift requests - for certain kinds or even for none - is to get the word out subtly by word of mouth but not to mention gifts at all on invitations, as doing so shows that gifts were presumed or expected otherwise.

It's extremely tacky to include those little cards from gift registries in invitations - even in shower invitations. For showers, no mention of gifts should be made on the invitation but when people call to respond, the host should know where they are registered so he/she can answer inquiries.

What if you do not stand on that much formality? I know I appreciated knowing which gift registry's the couple were registered at and I also appreciated knowing that a couple did not want gifts or money. One invitation I received a couple years ago requested no gifts but if people felt so inclined, they could send whatever they would have spent to a favorite non profit. I suppose that is the height of tacky but it did not bother me. Not talking Martha Stewart or Emily Post here.

When I married I knew which Aunts and Uncles were skinflints and would never part with a nickel unless they were dead. So I wrote a little note in the invitation saying they were welcome and no gifts would be expected or accepted. I really did want them there but did not want them to come grudgingly or not come at all.

If the invitations do not say anything about no gifts, perhaps you can field those kind of questions, when people call you asking.

People don't have any obligation to follow etiquette guidelines but if they are trying to avoid any potential offense, it's not a bad way to go.