Creating a fancy text editor box using the Ajax control toolkit. I'm guessing you guys have your own favorites for this, but here's another option that's baked into VS (kind of)
WARNING: Addictive games alert, if you want to stay productive, do not click on any of these links. :P Few years back, most of the online games were made with Flash, nowadays, with powerful browsers and web technologies, you can create games with just HTML, CSS and Javascript!
As Lincoln said, better to keep silent and be thought a fool, than speak up and remove all doubt. And so, in the end, 99 times out of 100, we choose silence
When we are silent, we are hurting the outcome
This is the problem" which can risk looking the fool and quite possibly pissing someone off, ask this: "Could it be ...that this is the problem?"
"Could it be" is a conversation starter, rather than an assertion
Very useful jQuery simulator which lets you use different frameworks and many other options. Especially useful for sharepoint development, because deploying/closing sharepoint is slow in comparison.