Sorry guys, but after April 2014 XP won't suddenly become immediately insecure.
Yes, there will be vulnerabilities found which will no longer be patched, which may well lead to exploits. But every exploit doesn't mean that every XP user will be infected. What proactive measures people have in place and the security applications that they use will still give reasonable protection.
There are some people that are more prone to infection, no matter what OS they may be using because they don't practice safe hex. They open unsolicited emails, may even open attachments and click links in said emails.
I have espoused having a robust backup and recovery strategy for as long as I have been on these forums (almost 10 years) and that hasn't changed. I believe every PC owner should have drive imaging software regardless of OS old or new and regularly make regular (weekly) full backup images of their system and daily backup of volatile data (word docs, XLS, emails, media files, etc. etc.) files.
I have used this to recover from many issues over that 10 years and not once has it been because of infection, but that is just one aspect that this could be used, recovery from infection