Removing / unistalling programs and unwanted software on my Macs is now so much easier with Forklift.
(click to view a larger version)

In Forklift, just select an app in the Applications folder (Syncplicity, in this example – Dropbbox serves my needs better), and click on the Delete App toolbar icon. You're presented with a list of related items for deletion.
Remove the tick in the checkbox next to an item to keep it.
Click Move to Trash, and the app is completely removed.
Remember this Terminal command:
sudo pmset -a lidwake 0
Andy Ihnatko explains why:
It’s a safety thing. Way, way too frequently I’ve picked up my laptop bag and it felt…warm. I unzipped it and heard a screaming fan. At some unguessable point in the recent past, the MacBook got jostled just enough to twitch the screen sensor and it woke up.
Inside a sealed bag whose thick padding acted as thermal insulation. Result: a white-hot $1500 computer. That can’t be good. If there are any weak points in the hardware, that sort of abuse will cook ‘em right into a hardware failure.
Here's a nice little Site Launcher that I've just started using on my Mac.

Anytime, anywhere while in a Firefox session, just hit ctrl + alt / option to call up an overlay where you can then hit a single key to access your favorite websites.
Hitting command + shift + s while you're on a web site calls up a window where you can quickly assign a shortcut key and enter a descriptive title.

[via Digital Inspiration]
I always have trouble remembering this keyboard shortcut: command + option + eject
Applicable to MacBooks, iMacs and Mac Pros.