I use a Breville immersion blender. Some people call them stick blenders.
I use mine every day. I talk about that in my post on homemade mayo and also my post on scrambled eggs.
For the record, I am not employed or compensated by the Breville company in any way. I recommend this appliance because I own it, use it and like it.
In fact, I use it so much that I kind of wore it out. The blade end separated from the stick and wouldn't work any more. So I emailed Breville and told them about it, and they sent me a replacement stick free of charge. I consider that great customer service from a company that stands behind its products.
Personally, I think everybody needs one of these.