DropBoks – Store files Online
If you are looking for a service where you can upload/download files without any other features try DropBoks. It is a single page application which makes use of Ajaxian Prototype. You can store upto 1GB of data. The UI is clean, No bells, no whistles, easy signup with very simple navigation and is ad free. But individual files cant be larger than 50MB, and only one file can be downloaded at a time.
Worth trying it out and Im damn sure you will definitely love it.