I like this little write-up form 2014 on Cool Hunting about IKEA's Janinge domestic chair. The chair is a very simple creation by Swedish design company Form Us With Love for IKEA with strict design standards to stand up to the same abuse that a chair for public use might endure. But of course, since this is a chair for the home, it had to aesthetically look pleasing too (whereas public use chairs don't necessarily have to look pretty).
And this is the result: A stackable, clean-lined chair made of reinforced polypropylene and available in 3 colors. And all for $69. This is one of those IKEA pieces that seems like it doesn't necessarily sacrifice quality for price.
PS: I love the IKEA website's description of this chair. It reads: You can stack the chairs, so they take less space when you're not using them. Haha, how straight-to-the-point. I want to replace my desk chair with one of these.