So today I tried to register on a site but I was denied because my email address was already registered. I don’t remember registering, and didn’t really feel like trying to retrieve a password for that account. I decided instead of using j.dub@gmail.com, I’d use jdub@gmail.com to see if it works. Bam! I got the email. Turns out gmail doesn’t care about periods in the email address, so jdub@gmail.com is the same as j.d.u.b@gmail.com, or jd.ub@gmail.com, etc. Sweet, eh?