it's good until the date your existing current visa stay or extension allows. If you got a re-entry permit for a visa or extension stamp you already have that allowed a stay for almost one year left, then the re-entry permit is valid to be used until your original allowed to stay date, either to re-enter one time or multiple times depending on whether you get a single or multiple re-entry permit. The re-entry allows you to stay again until the date your original visa stamp or extension stamp says you were allowed to stay. For example, you have a visa you used with a permitted stay date until 15 August. You get a re-entry permit and leave the country today, and come back on 10 July. You will only be stamped in to stay again until 15 August, because that's the date your original visa allows you to stay till. Re-entry permits basically allow you to resume your original stay period as if you hadn't left.
You're probably talking about the 60 day tourist visa, which is valid to be used once within 90 days but only allows a 60 day stay. You can go to immigration offices in country to extend it one time for 30 more days, giving you the 90 days. Either that, or enter via visa exempt entry (no visa) which grants 30 days, and extend for 30 more days, then leave and come back to get another 30 day visa exempt entry.
there are various sellers of android boxes that either come preloaded with a bunch of pirated movies, or provide illegal pirated access to streaming channels. Don't support such unethical people when most streaming services in Thailand are so cheap already.
A chanote (deed) or other property purchase documents are not a normal document to show for proof of accommodation. When staying in a private residence (presumably even your own), you must submit an invitation letter signed by the homeowner confirming the dates you are staying there. Simply write a letter saying that you are the condo owner and confirm that you will be staying for X dates. Include a copy of your blue book that shows you are the owner. If you bought it in a Thai company structure, then write the letter from the company, assuming you are the company director, and sign on behalf of the company.
If you don't have a smart TV, any android box will include all the usual streaming service apps, or you can easily download any missing apps like Amazon Prime Videos, Disney Hotstar, etc. Unless you are asking about the illegal services that give you pirated access to streaming channels.
Both PEA and MEA bills can be accessed and paid through the apps for each company. It's easy to add your meter to the app by entering the reference number and account number from a recent paper electric bill, then you can always view future bills on that meter in the app and pay by credit card, online banking, or using the QR code in the app to pay at 7-11.
Promptpay / QR scan payments are becoming the most common way to pay. Every single shop, food vendor and service provider accepts payment this way, and for many people, they may use QR scan to pay dozens of times a week, and only use cash once every month or less.
You're confusing the 90 day validity period for the visa with how long a stay it grants. Single entry tourist visas are valid for use to enter Thailand once within 90 days from the day it is granted, but only give a 60 day stay once used to enter the country. You can extend it one time for 30 more days at immigration offices within Thailand for 1900 THB.
you clearly don't know what Thailand calls its various entry schemes. Visa on arrival and visa exempt entry are entirely different things. Visa on arrival is required for less than 20 nationalities, where they must PAY for a visa on arrival into Thailand, which grants only 15 days stay and is not extendable. Visa exempt entry is a free entry available to about 60 nationalities, granting a 30 day stay, which is extendable for 30 more days.