If you’re like me, you’re using gmail for all those mailing lists that you have to be on, even if you don’t actually read most of the mails sent there, and have a label (and a filter) for each of the lists, so the mail skip the inbox and go directly to the label ‘folder’.
If any of this sounds familiar, I have a tip for you. If you want to quickly scan all the unread mails to see what’s new and/or mark them as ‘read’, you can search using the ‘is:unread’ special search tag. That way, you’ll get all the unread mail in one place, and quickly act on it.
There’s a bug, though. If you’re looking at the unread search results, you can’t mark them with the ‘Select: Unread’ option and mark them as read. You have to ‘Select: All’ and then you can mark them as read.