Make sure to not crowd the card by only listing top priority points on the wedding invitation. These points include the time, place, hosts, names of the bride and groom, and RSVP details. If you want, you can also include the dress code for the ceremony, but you do not have to. When you try to put too much information on the invitation, it can get hard to read and look chaotic. Make sure to never list gift registry information on your wedding invitations. This bit of info should only ever be listed on your wedding website. It is not respectable to put these sort of details on your invites under any circumstance.
Children are not invited to the wedding: This is very difficult indeed and again should not be mentioned on the invitation. Invitees should actually realise that if their children aren't mentioned by name on the invitation then they're not invited but they probably won't. Friends of the bride and groom may not appreciate that you don't look on their little darlings quite as they do but be firm. Friends with children should be telephoned and politely told that children cannot be catered for. If they are offended, then that's unfortunate.