I did this for some time while unemployed but the public libraries here (Seattle) have absolutely awful Internet access. Probably due to the large number of transient people watching... videos.

I like libs more too.

The "Landesbibliothek" in Stuttgart has real office desks with outlets and wifi. And since I'm a student, I get it all for free.

It's also a nicer atmosphere than in coffee shops. Way less foot traffic and most of the people are silent. Also, noone expects me to buy anything...