Online storage today is cheaper and easier than ever before – but temporary file sharing remains something of a technological headache. Many of the services we use and take for granted include a certain amount of free storage, and some will even include a sharing option. However, it’s very common to feel a pang of unease about how long this link will last for, whether the link will be shared beyond the intended recipient, or how secure the content is. Furthermore, even offline file sharing – passing a USB to a colleague for example - is not without its...