When I got married, I bought a wired string of pearls and tiny silk leaves for weaving into my hair, which was pulled up into a French twist. I got this hair accessory at Wal*Mart.
Your Wal*Mart wedding shopping can begin before you're even engaged because Wal*Mart sells engagement and wedding rings. http://www.walmart.com/search/browse-ng.do?ic=20_0&ref=125876.125876+500718.4293925407
Once engaged, you can register at the bridal registry at Wal*Mart. http://www.walmart.com/giftregistry/tour.do?registryType=1 By registering, you'll be less likely to get duplicate gifts and your guests will have an easier time choosing a present for you.
Wal*Mart has a surprisingly large selection of wedding items in their craft department. My local Wal*Mart sells bridal shower invitations as well as wedding invitations. They sell several styles of wedding invitations, including some you print yourself http://www.wilton.com/store/site/department.cfm?id=0A0205A8-802D-F658-0E9DBA63E3AB0936&fid=0A1031F4-802D-F658-05CFE1F49524C85F . These are reasonably priced at just $14.94 for kits of 20 or 40. Each kit includes the invitations, inner envelopes, outer envelopes, reply card and envelope and a piece of tissue. Some of the kits were even on sale for $11.00 per box. I think this is very reasonable.
In addition to hair accents, veils and tiaras http://www.wilton.com/store/site/department.cfm?id=3E30521B-475A-BAC0-59CDC1A0FE8013D4&fid=3E305EBE-475A-BAC0-5181E1F188CBF229 , they sell lace appliques and beaded trims if you're making your own dress or want to further embellish the dress you've bought. You can also buy plastic bouquet holders http://www.wilton.com/store/site/product.cfm?id=3E31A47C-475A-BAC0-585729FA572DE673&fid=3E333CD0-475A-BAC0-5EC478A289AD6B30 there if you're making your own flower bouquets.
Wal*Mart sells Wilton cake decorating supplies, including several styles of cake toppers, from traditional http://www.wilton.com/store/site/product.cfm?id=44BE2118-423B-522D-FA044960055DEEF8&fid=44BE2127-423B-522D-F46AE9C5726DE5BA to humorous http://www.wilton.com/store/site/product.cfm?id=3E30CDC4-475A-BAC0-5DF884ADE2AA5E11&fid=6403FBA1-475A-BAC0-52F713793E35DA59. I saw all types of cake making and decorating tips, tools and supplies as well. They also sell the books Wilton Tiered Cakes http://www.wilton.com/store/site/product.cfm?id=9B388FAD-802D-F658-0CDA2B37BE7AA16C&fid=A1D5C70E-802D-F658-09D860A797CB52C8 and Wilton Wedding Cakes http://www.wilton.com/store/site/product.cfm?id=3E30A675-475A-BAC0-525BB0AADDF3EB94&fid=3E32AEA9-475A-BAC0-5A57BB27FD2A4B5E . Either of these books would be great whether you need instructions or inspiration.
For decorating your reception, you can choose from lighted lanterns, strings of white lights, pastel petals or sparkling ice crystals http://www.wilton.com/store/site/product.cfm?id=3E30A164-475A-BAC0-5D3BAFFA6DAD9318&fid=3E32B783-475A-BAC0-5844B1CCB17037CA for decorating the tables, honecomb bells http://www.wilton.com/store/site/product.cfm?id=16C48D6F-423B-522D-FB723D48F1BC880F&fid=16C48D7F-423B-522D-FCA321ADC2797D30 or gigantic solitaire engagement rings http://www.wilton.com/store/site/product.cfm?id=1B2CD315-423B-522D-F80AA73986785CB7&fid=1B2CD324-423B-522D-FD8050BBEA17260F which can be used as napkin rings, favors or package decorations. Although they carried Jordan almonds when I got married, they now sell white wedding message heart candy http://www.wilton.com/store/site/product.cfm?id=3E319EA0-475A-BAC0-54F6E1E085AB94D8&fid=629EDCE6-475A-BAC0-55E889C7B10A631A . You can finish off your decorating with a choice of tapers and votives that they sell.
They have lots of ideas for favors that you can give your guests to thank them for helping you to celebrate your wedding day. In fact, they sell party favor kits http://www.wilton.com/store/site/product.cfm?id=4D551E24-802D-F658-0429C9B3D47E66C9&fid=4D551E34-802D-F658-037DC0B70A63D80E which consist of mini goblets, tulle, ribbons and tags. Small frames http://www.wilton.com/store/site/product.cfm?id=8BFDC833-802D-F658-051FEDEDEF904A61&fid=8BFDC843-802D-F658-04B6FB4E4EC2AA1C can be used as place card holders and then given to guests as gifts. They also sell tulle circles http://www.wilton.com/store/site/product.cfm?id=55DA4C66-475A-BAC0-59BBC673173FEF73&fid=55DA4C76-475A-BAC0-55739953E43FC17E and drawstring sachet bags http://www.wilton.com/store/site/product.cfm?id=3E309445-475A-BAC0-5336EE02E4412334&fid=5ACE00CF-475A-BAC0-50508F5A0E440025 which you can use to wrap rice or candies and favor boxes http://www.wilton.com/store/site/product.cfm?id=3E314DB2-475A-BAC0-5C2640BC3AFB48BE&fid=182162D5-475A-BAC0-540AD651877E874A which are great for Hershey's Kisses, mints, almonds and small gifts. If you'd rather not have your guests throw rice, you may want people to blow bubbles http://www.wilton.com/store/site/product.cfm?id=3E31415D-475A-BAC0-500EF12A05ED207D&fid=3E32B540-475A-BAC0-5F1DD731ABC7FFA2 at you instead. Wal*Mart sells these as well.
This isn't even everything Wal*Mart carries in their wedding area, but it may help you realize how much they stock. Of course, everything at Wal*Mart is reasonably prices; however, if you need help you'll probably have a hard time finding it.