inner envelope is often left out in the interest of saving money, paper, and postage. In some cases, a pocketfold takes the place of an inner envelope. In countries that issue them, the envelope may be franked with love stamps. The United States postal service issues a love stamp each year specifically denominated to cover the double weight of the invitation and reply (a rate slightly less than the cost of two regular stamps). Response As with any invitation, the sole obligation of the person receiving it is to respond, as promptly as reasonably possible, to let the hosts know whether or not he will be able to attend. Receiving a wedding invitation does not obligate the recipient either to attend the wedding or to send a gift. A proper response is written on the recipient's normal stationery, following the form of the invitation. For example, if the invitation uses formal, third-person language, then the recipient replies in formal, third-person language, saying either "Mr. Robert Jones accepts with pleasure the kind invitation to the wedding on the first of November", or "Ms. Susan Brown regrets that she is unable to attend the wedding on the first of November." Pre-printed, pre-addressed, pre-stamped response cards are frequently sent in the hope of encouraging a greater proportion of invited people to respond to the invitation. Some American etiquette experts consider the practice incorrect and ineffective at increasing response rates. Other items In addition to the invitation itself, sellers promote a full panoply of optional printed materials. The ensemble may include an RSVP response card, a separate invitation to a wedding reception, and information such as maps, directions, childcare options, and hotel accommodations. Wedding invitations should be sent out 6–8 weeks prior to a wedding with slightly more time being given for out of town or destination weddings. Guests should be asked to have their reply given between 3 and 2 weeks before the wedding date. Although many couples request RSVPs to be returned up to a month prior to the wedding day. These printers also sell matching pieces intended for the day of the wedding, such as programs, menus, table cards, place cards as well as wedding favors and party favors such as napkins, coasters, cocktail stirrers and matchboxes. In pop culture In "The Invitations" episode of Seinfeld, George Costanza's fiancée Susan is killed by licking toxic wedding invitations that George picked out