This site will be able to give you all that you need. It is very good as it has many free patterns from reputable companies and you are sure to find what you are looking for. It is crafts.lovetoknow.com/wiki/Free_Sewing_Patterns_Baby
Try online at Ebay.com. You can also find cute clothing on jimmyjazz.com, oldnavy.com and thechildrensplace.com. You should be able to find great dresses here.
walmart
At the related link below you can find dresses online and free shipping.
boohoo.com cute dresses for very cheap prices :)
J.C Penny
There are so many places to find cute dresses, both online or in stores. Walmart.com, Craigslist.com, are two good online options, as well as Ross, TJ Maxx, and thrift stores.
One can search and find cute baby pictures online on Google Image. They can also find cute baby pictures on Pinterest and BetterPhoto, a photographing company for babies.
ebay, charity stores, your mums closet from the 70s
Patterns for long dresses can be found at fabric or tailoring supply stores under brands such as McCall's, or Simplicity. You can also find samples and patterns on the websites for those brands.
You can find cheap formal dresses online from Charlotte Russe, Target, JC Penny, Cache, and Sears. Cute dresses re also sold at Hollister and Abercrombie & Fitch.
Styles For LessForever21H&MWal*MartTargetOld NavyNew York & Co.Milanoo
You can find really cute prom dresses at: JC Penny Dillard's and there could be more stores.