If you have both a DropBox account and a Vimeo account, you can link these to make uploading to Vimeo even easier. Just make sure that your DropBox space is sufficient to accomodate the exported video file.
Designated Auto Loading DropBox Folder
Create a folder in DropBox called Apps\Vimeo. This can be setup so it loads into Vimeo automatically.
Custom Video DropBox Folder
Vimeo: Upload a Video
Establishing a link
Click on re-connect
Sign In to DropBox
Optional: Auto-Upload Folder Selection
Choose (Auto) Upload Folder
Choose any folder, but recommended is Apps/Vimeo