Given the simplicity of signing up for an email account, most folks end up having multiple email addresses. Some are for business, others for friends and family, and it's a good idea to have one to use for offers that may result in a deluge of spam.

Then there is the most controversial kind of email address: one you keep secret from your spouse or partner.

According to a survey from BullGuard, 20 percent of men have a "secret" email account for correspondences they'd rather their partner not see.

The survey also found that an even more nefarious 5 percent of men have a secret second cell phone for similar purposes.

[The Daily Mail]