This little CSS tweak comes by way of Lifehacker. Gmail users interested adding minor visual aids to their email messages reporting the type of attachment included in messages should check out the latest from userstyles.org. The Gmail with different attachments stylesheet will append your inbox messages with relevant icons depending on the type of attachment included in the body of the email. A great addition for those that deal with handfuls of attachments. Scouring through subject lines deciding on whether or not the message holds the right attachment are a thing of the past.
Simply download and install the Stylish Firefox extension, navigate to userstyles.org, and install the Gmail with different attachments rule. Once done, visit your Gmail inbox and marvel at the little tiny icons sure to save you a few seconds of browsing.