{Widgets? Gagets? Oh my!}

So, I have roughly About 24,800,000 to choose from.
Seriously?
How am I going to wade through all of those in my lifetime.
The last thing I want to do is clutter up my blog {and yes, I am doing a complete overhaul soon}
So how do you chose the right ones?
What should I be looking for?
I.need.more.input!!