You can get the 30 day extension for each visa exempt or tourist visa entry. The multiple entry tourist visa would be the best bet. Get the 60 days on entry plus the 30 day extension ea h time to minimize how often you need to leave.
it's a hassle, but a border bounce just for the 30 days is even more of a hassle, will definitely take longer than 3 hours, and cost more. If you do it because you wanted to visit whatever country it is you go to then it may be worth it.
If you are referring to the tourist visa it is not 90 days. The visa itself is valid for 90 day, which means you have 90 days to enter the country. When you enter you will be granted 60 days to stay, and that can be extended another 30 days by going to immigration. When people leave the country and re-enter they are not getting the extension. They are getting a new visa exempt entry, which is good for 30 days. This also can be extended by 30 days at immigration.
What's best for you really depends on your plans. If you plan on spending less than 30 days before leaving, whether to visit neighboring countries or return to the the US, then I'd just enter on the 30 day visa exempt. If you plan on staying more than 30 days I'd go for the tourist visa so I wouldn't have to hassle going to immigration for the extension.
I have a financial advisor in the US that manages a couple of my accounts through Schwab. No problem with maintaining 2 addresses, a mailing address in the US and an international home/legal address so they don't take out state taxes.
It's the easiest as others say, but it's really not that hard to top it up when you need to. Personally I'd spend from it after the allowed period and then top back up when needed for the next extension. That way I can leave other money invested as long as possible vs sitting in account doing nothing.
Not sure, and maybe someone will correct me, if the limit is due to Wise. I believe it's a bank limit and there are only 3-4 thai banks that allow larger transfers.
When you go to gallery you are looking at photos stored on your phone, both internal memory and memory card. If you delete photos from the gallery then you are only deleting them locally from your phone. Any backups of the photos online are still there. You don't need a huge memory card if you simply delete photos that you've already backed up.
It sounds like your issue isn't storage on your phone, but how much online storage you have. To look at how much storage you have and to free up space you need to go to the online account. For android phones you just need to open the Google One app. You can free up space by deleting photos and files or purchase additional storage. Plans start at $20/yr for 100GB.
Is there a reason you don't want to use Google voice? I realize it won't for some banks, but it works for all my banks, credit cards, etc two factor authentications. I only ran into one credit card that wouldn't let me set up online banking with it. It was a new card I was applying for so I just canceled it and went with another company.
Likley you'll need to include it on your taxes, as you would any income. Even gifts. Whether or not you will have to pay taxes will depend on what you received the money for and Thailand tax laws.