If you visit your Google Mail account you can look at the footer of the mail index to see how many free space is still available for that account. The current free storage that most Gmail users currently get is 7839 Megabytes which should be enough for the majority of the email users. But there are some users who have made Gmail their second home, who receive large files as attachments on a regular basis and who want to keep all of these emails and files in the Gmail account.
The solution for these users is to buy extra storage space for both Gmail and Picasa as these web services share the extra storage.
Gmail users can visit the purchase storage page to take a look at the pricing for extra storage. Prices start at $5 per year for a 20 Gigabyte increase in storage space, 200 Gigabytes are available for $50 per year and the maximum currently is a whooping 16 Terabytes for $4096 per year.

Another solution that is more cost effective is to transfer old emails from the Gmail account to a desktop email client to create a backup of the emails and attachments and to be able to delete the transferred emails afterwards in Gmail. While that is not always practicable it could be a solution for users who do not want to buy extra storage space.
How much storage space are you currently using in Gmail or Picasa?
Related posts:
- Gmail Raises Attachment Limit to 25 Megabyte
- Gspace Gmail File Space Extension
- Gmail, Windows Live Hotmail and Yahoo Mail Comparison
- Retrieve Emails from other accounts with gmail
- Use Gmail As Email Backup Space
- Use Gmail To Host And Share Photos
- Check Multiple Gmail Accounts With Gmail Notifier
- Gmail Login Page

I’ve been using Gmail for 5 years now, I’m just now about to break the 1GB barrier. I use it pretty heavily, and I save pretty much all my mail …I guess I just don’t get that many large attachments.
Nothing for us normal users I suppose ;)
141 Mb. So, I don’t need any extra :)
I used 4 GB / 7G already, well, a hard decision to make