I mostly stay at airbnb - and I make sure that it has wifi and that there are positive comments re wifi and no negitive comments - I will also ask the host before booking
I bring a 27' 1440p monitor and a monitor arm to use in conjunction with my laptop to have a good dual screen setup - I also tend to bring a 50' ethernet cable to connect to the router to avoid wifi trouble
I use google fi for my phone - it works all over the world and if my internet goes down I can tether to my phone (at 10 USD per gb) - its also great that I have the same number wherever I go so whatsapp etc just works and I can give work contacts a stable number
in most states you can file to open an LLC online (or by printing and mailing a form and a check) - 2nd step is to apply to the IRS for an EIN (tax id) for the new entity. then you need to do annual filings with the secretary of states office of the state your in (This is all applicable to the U.S)
if your located in the U.S. a single member LLC is one of the most convenient ways to go.
You should strongly consider incorporating in the jurisdiction where your business operates as just because you form the company somewhere else does not stop local tax liability (and in fact if done wrong could incur new additional tax liability in the other jurisdiction where you incorporate)
There are two main reasons to incorporate - the 1st is to shield your other assets from liability - this is more or less important depending on if you have substantial assets and how likely the business is to incur liability (everything has some risk). The second is that with good accounting practices and proper structuring it is often the case that running a business as a legal entity will be more efficient for tax purposes - but this only starts to matter as your business starts to really make $.