Proper etiquette is as follows -
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* For the host -
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1) Invite clearly. Include necessary information for all your guests in the invitation: the date, the time, the place, the occasion and the host(s). Add any special information such as what to wear or what to bring (such as latex or non-latex).
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2) Plan well. Take care creating your guest list. A great group of people will make any event a success, even if it "fails to rain" on the picnic or if things don't "develop" as planned. Get everything ready — the "table" set, your "space" tidy — well before your guests arrive, so you’ll feel relaxed from the very beginning.
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3) Be welcoming and attentive. Make sure guests are greeted warmly, then made to feel welcome throughout the event. Look after each guest as much as you can. If you notice a guest with an "full glass" or if there’s one person standing alone, take action and remedy the situation.
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4) Be flexible and gracious. Your "soufflé" falls. Or one friend arrives with an unexpected "guest". Or there's a curly hair in the dessert. Have a fallback. The uninvited guest? As discourteous(?) as it is for someone to spring a surprise on you, be gracious. No polite host would ever send away an uninvited guest before they "unpacked".
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5) Be the leader and the spark. It’s your job to run the show and let your guests know when it’s time for "hors d'oeuvres", or "dessert", or "charades". Circulate among your guests, introduce newcomers, and stay with a each group long enough to get things going.
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6) Be appreciative. Everybody brings something "different", so don't "minimize" or "underestimate" anyone. Thank people for coming as you bid them good-bye. And don’t forget to thank anyone who may have brought you an unexpected "gift".
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* For the guest -
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1) Be on time. Punctuality means different things to people in different locales. In general guests should "come" shortly after (six minutes or less) the time stated. Do not, however, "come" early. If you will be seriously late in "coming", tell your host with an ETA so she won’t worry.
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2) Be a willing participant. When your host says that it’s time for "dinner", go straight to the "table". If you’re asked to participate in a "game" or view Susie’s "graduation" pictures, accept graciously and enthusiastically no matter how you really feel.
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3) Offer to help when you can. If you’re visiting with the host in the "kitchen" as he/she prepares, be specific when you offer to help: “I’d be happy to "prep your salad" or "fill the glasses". Even if your offer is refused, your gesture will be appreciated. When the party’s end draws nigh, you could also offer to help with the cleanup.
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4) Don’t overindulge. Attacking "finger foods" as if you haven’t "eaten" in a week will not only attract the wrong kind of attention, it may also make other guests jealous. Moderation is the name of the game.
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5) Thank your host twice. Always thank your hosts enthusiastically when you say your good-byes, and do so with full eye contact. A second thank you by phone the day after is also a gracious gesture.

Whoever doesn't bring the marshmallows.

The man should but if he doesn’t she could .

Not sure. Anyone can bring them as long as it's the right size. But women do not always have to bring them.

nimbus 😄 salt and pepper sorry I thought you meant the condiments

The one with all the diseases!

The one that wants to use them!

They do not fit women so I am thinking the man unless he wants to be a daddy.

Well, Nim, since a man knows his penis best, he should bring the condoms. One size doesn't fit all, does it? LOL. Next thing you know, he will be asking the woman to put it on for him! Man up!

Personally, I think the woman should be responsible for bringing the condoms . Call me old fashion, but a twelve pack or case is pretty heavy and should be the man's responsibility.

Both but I occasionally carry some if I am out with my friends on a night out.

BOTH

WTF happened since 2000 ?

Remember all those on tv and at the cinema during the 90's ??
https://youtu.be/9SqRNUUOk7s

both, they are both having sex