Until I played with sparrow I had the misconception that when you send an amount out of one address you MUST send the entire amount and the change goes to a new address. The rule only applies to UTXOs, if you have an address with 10 UTXOs of various amounts, using sparrow you can send from a few of those UTXOs and the unspent stay where they were. While that's not really practical since that means you have reused the same address for receiving, it was cool to grasp the concept of UTXO vs address.

spot on

Unfortunately I can't fathom what you're going thru

I found it here. Even has a video of how it works. I added it to my wish list :) https://www.freemarketkids.com/products/hodl-up

And then he smiled and bought more sats instead of paying for gas

I think so. Only 10 or so blocks out now so just a little slowdown and probably.

Installed :)

stay humble and stack zaps

My first was the most frightful but made me realize I had much to learn. Moved some off an exchange to a paper wallet and stressed out while waiting for it to confirm. Then swept it from the paper wallet to a hot wallet on my phone and stressed again. Then sent it back to the exchange. And then wondered why so much of it was lost in fees, and the learning began...