Dear All,
I just figure out that I can now have 15 GB of my gMail (gMail + gDrive)
gMail = 10 GB and counting
gDrive = 5 GB
When you write an email with attachment in gMail you don't need to attached file directly to your gMail. If you attached directly it will eat up your 10 GB gMail Space. So you are now owned a 5 GB attachment more with gDrive. To get that are just:
1. Write your email as normal in gMail
2. When u want to attached, upload your file to your gDrive
3. Put mouse over on button + and Click on gDrive logo to insert file as attachment from gDrive
4. Send, then you click on Share & Send Button with a Can View Permission
Hope this little tip is useful for you.