Here's a quick and simple timesaver...

1. Open the current Finder folder in Terminal

Setup

Download " > cd to ... ", copy it to your Applications folder, and then from the applications folder drag it into the Finder toolbar.

Usage

To use, just click the > ... button on the toolbar

2. Open the current Terminal directory in a new Terminal tab

Setup

First, we'll need to add some AppleScript to ~/.profile

# Open a new tab on Terminal with the current  directory
# See: http://elsethenif.wordpress.com/2009/06/11/open-a-new-tab-on-terminal-with-the-same-path-on-mac-os-x/
function nt {
        osascript -e "
                tell application "System Events" to tell process "Terminal" to keystroke "t" using command down
                tell application "Terminal" to do script "cd \"$(PWD)\"" in selected tab of the front window
        " > /dev/null 2>&1
}

Usage

In terminal, now type:

nt

3. Open the current Terminal directory in Finder

To get back to the Finder window, type...

open .

And finally...

To wrap it up, a demo video: