What is your guest attire for your wedding?

@sugarunicorn, it's ok to simply state that your venue requires no denim. When there is a venue requirement like that, it's good to be direct about it.

We are having an evening reception. We made our invitations and website elegant looking, but people kept asking how to dress so I just added a line to our website saying that we are suggesting semi-formal, but to take the weather into consideration (December) and to wear something that you will be comfortable in. I figure that gives people an idea, but doesn't give anyone the impression that they need to go out and buy a fancy gown.

September, Saratoga Country Club (ceremony outside, reception inside). Although it's not an official designation I'd say it was 'church attire'-- skirts or nice slacks for the women, suits and ties for the men.

Whatever they want so long as they are wearing something.

I want a formal reception (we booked a room & tent at an upscale lodge & spa, more character than a ballroom, but still rather formal). Our ceremony starts at 5 and reception starts at 7 & over Memorial Day weekend. I'm including a line on the website that specifies formal attire and making sure that my parents & bridal party know to tell others formal if they ask. Honestly, I'd probably be okay saying semi-formal if I wasn't worried people would wear jeans. I find it disrespectful to not dress for the event you are attending, so I'm overstating formality to hope that people will at least wear cocktail dresses & suits. We also live in Seattle (aka the land of hiking boots and polar fleece), so people here have a tendency to underdress.

Venue: bronx zoo in October formal attire.

I sent out formal invites which reflects In itself that it isa formal night.

We were originally going to have our reception at the Pasadena Civic Center, but were bumped for another major event. We are considering either The Noor or the Westin both in Pasadena. We are getting marred Thanksgiving weekend 2016 in the evening. We requested our guests attire be semi-formal.

We are having a 7pm outdoor ceremony in September. It will be in courtyard of a bed & breakfast, and I'm not planning to specify attire. I would be upset if someone wore jeans or sweats though. That's just disrespectful to me. I actually saw a picture on my photographer's website of another wedding where a guest wore leggings and a tank top, and I was furious for the bride, who I didn't even know. And @OP, I recently went to a kentucky derby themed wedding, and it was sooooooo much fun. Everyone looked amazing in their hats, but truthfully they did get in the way. A lot of people took them off by the end of the night, but it still made for a lot of fun and some great pictures.

Getting offended by other peoples' clothes is a really good way to waste time letting others' decisions dictate your emotions. People are not wearing clothes at you.

We made ours semi formal/black tie optional only because I'm honestly terrified that some people in my fiance's family would wear jeans and my dad has a habit of wearing this really ugly satin vest to everything. You could always add a note either separate or on the back of the invitation that says semi formal or cocktail attire.

My wedding is in November, we are getting married in a mansion so the dress code is "black tie invited". I worded it "invited" instead of "optional" because I want to encourage people to wear a tuxedo and long gowns because I'm having a true black tie wedding (white glove service, 3 course meal, butlers and waitresses for each table, Viennese hour, plated dinner, etc.) but I want men to know that a dark suit is perfectly fine if they can't rent a tuxedo and I'm not going to kick someone out of my wedding if they're not wearing a super dressy gown or a tux.

May wedding, church ceremony and tented garden reception. Our wedding and reception are in the evening, and we're serving hor d'oeurves (plus beer and wine) instead of a plated meal. We're going for a cocktail hour type feel, so our guests may be dressed a little fancier. The groomsmen will probably be in tuxes, and the bridesmaids in floor length dresses. However! I would never expect the other male guests to wear tuxedos, unless they wanted to/were able to.

It all depends on what feel you are going for at your wedding. Is it during the day or the evening? Do you want it to be more formal or more relaxed? Season, and whether or not it's indoor/outdoor might help you decide on dress code too.