Problem: You need to share files with your team and all you use is a Windows network folder, which might even be a mapped drive. No matter how easy Windows folders are, they're a great idea that few people like to use. The preferred way to share files continues to be an e-mail attachment. Even with all the unintended hiccups such as the missing attachment, or knowing which file is really the latest one, or having to unzip a bunch of files, people still gravitate toward that because it seems quicker. I believe another reason why people continue to e-mail files over and over could be that there's a sense of accountability. You can always see when you sent your attachment. So in essence, e-mailing files serves as some type of poor man's version control.