Good advice Dot. I have an AAPL I-pad for remote trading. Kept me out of trouble a couple of weeks ago when I had jury duty.
I also have a Republic Wireless Smartphone that I can trade from. Republic is a discount wireless carrier that uses MOTO X phone. Since I mostly work from home, don't really need an expensive wireless contract. I pay about $10/month.
It basically works off wifi, with limited cell connections as backup. Has worked very well for me.