If you run into problems trying to remember a password on your mobile or computer when trying to buy something, then things could be about to get easier.The fact is that the way we users typically deal with having multiple passwords for our online accounts makes us too vulnerable to spyware, phishing and identity theft.So the industry is looking to ditch passwords, and is turning to a variety of solutions, such as voice recognition, key stroke analysis and finger print identification.Payments firm PayPal is one of those leading the changes, and president David Marcus says the aim is to make the whole process seamless."Like magic, you'll be authenticated,