Use an automatic uptime monitor with notifications to always know if your node is running and reachable. Also, this way, you will know when your node is down the very moment it goes down, thus minimizing the time it will take you to get it back online. And it will help the operators mental health, because you don't need to constantly check on your node just to ensure everything is fine.

A simple way to do this:

if you are using phoenix wallet, keep only 1 channel(!) and make sure its relatively large.

So if you are new user and its your first deposit, make a large deposit, like 500k sats, because that will roughly be the size of your channel. Phoenix adds a little capacity when they swap you in. And then keep an eye on your capaicity, do not exceed your liquidity because then the wallet will automatically create a new channel for you and that costs at least 10k sats and thats going to be a bummer if your only exceeded your capacity with 20k sats. So it sounds complicated, but its not so bad once you get the hang of it. And phoenix wallet is better long term because you own the channel, and dont have to worry about it being closed even if you dont use it much.

There was a good thread started by @apleroy last week here: #44747. It more specifically covers routing techniques rather than operational aspects but worth checking out.