I think I want to pick up a second monitor for when I travel or sit in a client's office to hook up to my laptop. Historically I've actually carted around a 19" monitor with cables and everything but turns out portable monitors are actually a thing and I don't need to be a loser carrying around a screen anymore.
For those of you who do this, what are you using for a second portable monitor? I see Asus has some USB powered ones, but I also hear a lot of tablets can be used as second monitors? I'd like to keep the cost on the lower end of the spectrum as I don't travel as much as I used to and it will be used for things like emails, PDF viewing, and excel. I'm looking for something with at least a 13" screen but I think the 15" - 19" would be ideal.
I'm currently running a Surface book with Windows 10 if it matters. I have the wireless adapter and was planning on using TVs but thats under the assumption that the TVs have HDMI and USB.