Polar Bear

Have you checked the toilets to see if one is constantly running? If the valve isn't cutting off properly, the overflow just goes into the pan, so it's easy to miss. (The same thing can happen if the flush valve isn't closing properly, but then the tank will be empty when you want to flush it, so you usually notice that.)

Have you tried Berrer? https://www.berrerbrand.com/หมวดสินค้า-10-ยีนส์-=-หมวดย่อย,118

It works out to an increase of about 5.8% for each year you defer. https://www.gov.uk/deferring-state-pension/what-you-get

Denied boarding

Not this route or airline, but I've been pinged at the departure gate for document checks after an online check in, once to confirm I had a visa and once for an onward ticket. I had the paperwork with me both times, so there was no issue, but I assume I would have been denied boarding otherwise.

How much do you usually transfer? You can only send less than 50k THB per transaction to Krungsri. Wise will only send bigger (up to 2 mill) transfers to Bangkok Bank, Kasikorn and SCB.

I've seen this one get recommended to Brits specifically for not being American-style, but that's second-hand info, not a personal recommendation.

Berrer https://www.berrerbrand.com/

If it's oversized for carry-on, they will force you to check it and charge you for it. If it's oversized for check in, they will charge the oversized/overweight baggage rate. That was 250E on the route I used to take. It's probably something similar from Thailand. That's why I got it made a couple of cm below the maximum, just to be sure it wouldn't be slightly out.

Thai's cabin allowance is 7kg for the carry-on and 1.5kg for the personal item/laptop bag. Most airlines have boxes/cages to check the size of carry on. They have them at check in and at boarding, though most won't bother to use them unless they suspect your bag is oversized. However, KLM check-in staff do have tape measures as well. For checked baggage, they have a linear maximum (158 cm in total - length + width + height). I have a sports bag that was custom-made to fit their sizing. It's 156 cm total. They usually check and always seem disappointed to find it fits.

Thai's allowance is only by piece to USA & Canada. To everywhere else, it's a weight allowance, so you can take more than one bag, as long as they are less than your weight allowance in total. There was talk of them switching everyone over to a piece allowance last year, but as far as I know, it never happened. In any case, if your allowance is 25kg, it's a weight allowance. When it's by piece, it's 23kg in Economy. https://www.thaiairways.com/en_TH/travel_information/baggage.page?

https://www.dlt-elearning.com/forignerhome

Installing solar panels and replacing AC units in a rented property doesn't sound like a very economical option TBH. Or is this my landlord posting...?

It needs servicing soon anyway, so I'll let the landlord send someone to deal with that.

I usually just take them outside and hose them down in the yard. It's a 5-minute job. I can do it weekly if it'll help.