Store all your files on one free site (up-to 1gb)
box.net is a really great website, that lets you store your files easily and very fast. The sharing options after uploading, range from embedding a widget, to sending links for sharing specific folders. The free service is limited to 1gb, but they also offer very affordable upgrades.
BugMeNot will give you a user and a pass to websites
BugMeNot is pretty old and chances are you are already familiar with it, but it’s still extremely useful, so it’s important to mention it again and again. All you have to do is enter a site that forces you to register to them (and all you wanted was to read one simple article or one forum post) and BugMeNot will provide you with usernames and password for these websites.
Tired of e-mail spamming? Try Mailinator
Mailinator can eliminate your spam; it’s as simple as that. Whenever you register to any site that requires an e-mail verification - just write down something@mailinator.com (”something” can be anything your heart desire at that moment) and then go to the Mailinator site and retrieve the mails sent to that address. Instant, quick and ever-ready e-mail addresses you can use at any given time. You don’t have to open an account, the e-mail address is automatically created whenever an e-mail is sent to that address and after you read it, the address (and e-mail) will be deleted.