Thank you, that is actually helpful. It raises a privacy concern that I had not considered before. I had considered backwards looking privacy issues, but not forwards looking. If I have a UTXO of any meaningful amount in the future and make a transaction, the recipient can see the change and know to some extent how much bitcoin I have, right? Therefore it may be prudent to have UTXOs of a decent size for cost savings but not large enough to reveal meaningful holdings.

I have no plans to spend any coins anytime soon, which is why I am toying with the idea of consolidating now given the relatively low transaction fees assuming the fees will go up in the future. I was considering consolidating into multiple uniform UTXOs, e.g. ten 1 bitcoin UTXOs. That way in the future if I need to spend, I am not breaking apart one ten bitcoin UTXO, etc. Again, setting aside the privacy issues, these are all UTXOs linked to KYC information from various exchanges over the years. I have played around with coinjoins in the past, but not interested in it at this time.

I have no plans to spend any coins anytime soon, which is why I am toying with the idea of consolidating now given the relatively low transaction fees assuming the fees will go up in the future. I was considering consolidating into multiple uniform UTXOs, e.g. ten 1 bitcoin UTXOs. That way in the future if I need to spend, I am not breaking apart one ten bitcoin UTXO, etc. Again, setting aside the privacy issues, these are all UTXOs linked to KYC information from various exchanges over the years. I have played around with coinjoins in the past, but not interested in it at this time.

1. Yes. I probably mine at break even or slightly below, but I mine for non-KYC purposes and am willing to pay that "premium."
2. Pool. I use Antminers. I have used numerous pools and each have their strengths and weaknesses. I encourage you to try multiple pools to find what works best for you. Some considerations: type of payouts (PPS, FPPS, PPLNS, PPS+, etc.), KYC issues (e.g. Foundry), does the pool re-use addresses or can you use an XPUB, accounting features, etc. Because of the cost to mine where I am, I use a pool because the chances of solo mining paying off are akin to winning the lottery. If you want to consider solo mining, maybe consider something like Bitaxe a relatively low risk and low cost mining solution, although the chances of finding a block are significantly reduced.
3. Hosting facilities because the cost to mine where I am located is prohibitively expensive. I prefer self mining but the costs in time and money were too much for me.
4. Mining is not for everyone. Unless you can obtain really cheap power and really cheap machines, it's not likely to be profitable, and it is really hard to find cheap power but costs of machines have come down. The looming halvening is also a big threat to profitability for obvious reasons. New generation machines consistently come out making your current machines that much less profitable. Having said all that, I am glad I mine because I have learned so much about the network, how it works, and non-Bitcoin things like how power works, computers, and software. I feel relatively secure in my jurisdiction that the threat of seizure, sanctions, etc. are quite low.  I am also glad I mine because I have a stack of non-KYC coins. I don't view mining as something I will do for years to come. I will likely mine until my machine efficiency is reduced to the point that the costs significantly outweigh the benefits.

I wish you good luck in your journey.

Thanks everyone for your feedback. It seems to me there are no clear answers to my questions since the issue is so personal to everyone.

I understand all the privacy considerations with UTXOs. I understand how fees play a role with various UTXOs. I understand how consolidation and change works, etc. My wallet has coin control features. I was simply wondering if there is a general idea of how large a UTXO should be.

Thanks everyone for your input.

You can always use a translation book. But my concern would be if you use Book A in 2023 then need to translate in 2050 but no longer have Book A so you use Book B or even use Google Translate or some other service, the translation may not be the same as in 2023 from Book A and now your seed phrase is unknown and your funds lost.

You're thinking the right way though. But with something as important as seed phrases, the KISS (Keep It Stupid Simple) mentality is the way to go.

I am wondering if anyone here has any recommendations for UTXO management best practices. Setting aside privacy issues (I am aware of those), and focusing only on future cost savings, how big should my UTXOs be? For example, if I have 10 bitcoins in cold storage, should I make one 10 bitcoin UTXO? Two 5 bitcoin UTXOs? Ten 1 bitcoin UTXOs? I am sure the answer is different for everyone base don their preferences and needs, but am wondering what people think. Thank you for your opinions.