I actually just piled up all the stuff for our gift bags and packed it away this weekend, so I've just been thinking about this.
One thing that I found most helpful was to try and buy one item at a time when you see a good deal. All of my stuff from the
Disney store was bought at sale time and I got most of it super cheap! Also remember that most candy has a sell-by date that is months and months after it is made (especially non-chocolate candy) so you can buy it in advance.
One thing that surprised me was now much I was able to get at local discount and closeout stores. Since they buy lots of small lots from lots of places, they often get Disney stuff from other sources. For instance I got Goofy Candy Game Pieces (they have a tic-tac-toe board on the back of the box and 2 different color candies inside), Pirates of the Caribbean Chocolate Cannonballs and Mickey Mouse microwave popcorn all at a local closeout type place very inexpensively! I also bought Disney playing cards at the Disney outlet in Kissimmee for 99 cents each on my last trip to WDW and bought wedding-themed stuff on sale at Hallmark.
For folks in the Northeast, I had great luck at the Christmas Tree Shops and Ocean State Job Lot.
Also, try AVON for sunscreen at a good price. I was able to get sunscreen wipes that also have bug repellant in them so that I could include a few in each bag without going broke buying a bottle for everyone. (It IS the thought that counts...

)
Our bags will include:
Mickey microwave popcorn - 1 bag
1 box POTC Chocolate Cannonballs
1 box Goofy Game Pieces Candy
5 individual bags Disney conversation hearts
1 Folding Umbrella per person (bought at the dollar store - personalized with a silver metallic sharpie!)
Wedding sachet from Hallmark - one per female guest
Pop-Up Candy from the Disney store - one per guest (Tink for girls, Incredibles for boys)
Feathered cinderella pen from the Disney store
Cinderella lip balms - bought from Avon
Motrin packets
Shout wipes
Disney band-aids - we bought Pooh, Princess & Incredibles and mixed them up for 4 in each bag
Combo sunscreen/bug wipes from Avon
1 Deck Disney playing cards
This might not be everything, but that's what I can remember.
We'll buy water when we get down there, but I'm not personalizing the labels - the umbrellas and the outside of the bags was enough!
I got our totes from eBay from a seller called 1stopwholesale. I bought the Taylor Layne canvas tote bags in lots of 12 - you get three with pink trim, three with royal blue trim and three with teal trim. I especially like that they have a zipper across the top so we donlt have to be as careful about them always standing up.
Also, we personalized some too - our moms got tissues that say "Because I'm the Mom, that's why!" and my MOH got a baseball cap that says MOH. My MOH's daughter also got Cinderella crayons and a coloring book, some Disney cubees (again, on sale and clearance at the Disney store), and her dad, who is a doctor, got a Doc clip-on.
Sorry for the ramble, but hopefully this will help someone!
Jennifer

Intimate Wedding 12/11/06
WP