Thankfully I didn’t have to apply my own stamp 
As @thumper1 said, most people use printed address labels these days. They sent the invites in the mail, so they had addresses. I just thought the request to address my own envelope was a bit tacky 
But I guess it’s better than getting a generic, group blast email “thank you”, or no thank you at all. Both of which have happened in recent years.
I got a thank you note for a wedding shower that happened a month ago. My sister (mother of the groom) said she got hers a few weeks ago. The invitation had come by email (although the save the date and the wedding invitations have been by mail).
The bride’s penmanship is beautiful and she wrote a long note thanking me for coming to the shower and the gift. I happen to know the groom has horrible penmanship so opposites do attract.
I think this practice started even before most used printed labels, we hired a calligrapher to address out wedding invitations (well my mom did).
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I was watching a clip of the Dune 2 premiere - it was most of the cast, so a large group. The photographers were asking the actors to stand closer “pretend you like each other!” to get them all in frame. I noticed that the women would put their arms around each others waists , but the men would have their hands in front of them at all times. This is a definite change.
…or angus cattle, not yaks
So I guess it’s acceptable etiquette to hold “wedding fundraisers” now? I just saw a Facebook post for one in Austin. Brisket and sausage plates, along with a bake sale, will be held. The post included a Veno link for donations. Wow.
Oh, and “just send money for our honeymoon” is apparently okay. No registry. I kind of agree with that one.
Is that for the shower too? Wedding gifts have always been strictly cash here, but most have a shower registry.
I was surprised the first time I saw that, but have decided I like it! But I can afford a nice monetary cash gift now. I would not have liked it when I was younger.
I believe it included the shower because that was the message generated when you went to the registry website.
As a representative of Gen Z, and a newly married one at that, I will tell you that the following is not acceptable etiquette:
Asking guests to fill out their own envelope
Wedding fundraisers
Registering for cash
Sending a group thank you via email blast.
Lecturing people on how they run their home.
I’ll plead the Fifth on offering venmo details when asked.
Individual emailed thank you notes are acceptable, as are preprinted labels, although we used a calligrapher.
Just because some people have no manners doesn’t mean it’s acceptable
Congratulations on your marriage!
Thank you
You’re one step away from writing your own thank you card and taking it with you to save on paper, postage, and the carbon footprint needed to deliver it ! 
Congratulations, @skieurope !
Wishing a long and happy union to both of you.
Congratulations!!!
D2 is getting married this summer. She is including cash as an option for her gift registry.
When D1 got married, she didn’t have cash registry, but a lot of people gave her cash (check) in a card.
D2 has a very small apartment with her SO. I think the last thing she would want is a lot of towels, cups, china that she doesn’t need.
I never heARD of printed labels on clear paper. What a help during holiday season. Thanks for the info.
Ski, can you share more details of your wedding?
I’d love more info on the @skieurope wedding as well!
We are all clinking our glasses – we want a photo! hehe