I'm getting a high number of unique visits for my dating site. I'm sure this is because people are using multiple computers (I know this because I'm tracking it separate from Google). Since our members have to login and therefore have a specific account, I was wondering if there was some way to set something in the ga code to have it register that user for a specific session even though they might later that day go to another device to view their account. So basically I want to set my own session variable for that user since I know that they are not unique when on a second device/computer. Possible?