The Internet delivers information super-fast but cluttered web browsers don’t always handle this information in the most elegant of ways. This is why I recently started using OmniWeb again.
Evernote for Mac now lets you search using “everyday language”. In other words, type your search terms in the same way as you would speak, and the Evernote search engine will understand you.
Sequential for Mac does what you wish Preview.app did out of the box: browse multiple images using the arrow keys.
Your mail client should work for you, not against you. If your mailbox is cluttered with unread and unfiltered messages, you need to check out the IMAP mail client, MailMate.