Instead of wasting time on my homepage, I recently wasted some time fooling around with Firefox extensions. Up until now the only extension I used on a regular basis was All-in-One Gestures.
But now I've tried ForecastFox and Adblock (both are in the list of popular extensions, and I like what I see. I stumbled upon this list of ads to block which seems to be frequently updated and effective. I started using Flashblock in concert with Adblock.
To top it off I procrastinated further by visiting pointless sites.