You may not need it as you settle into full-timing, but I highly recommend it to begin with. I was surprised by how many items needed my immediate attention or I wanted right away in the first two months of retirement. Things have settled down now and time will tell if I continue with the scan service.
The current gold standard in on demand water heaters for RV's is Truma. They have been in the European market for a while and have been moving into the Armerican market over the last few years. Many manufacturers now offer it as an option. I have one and am very happy with it. It has all the benefits of an on demand system and has engineered out the draw backs as described above with temperature issues. Truma did this by adding a small temperature stabilizer tank in the unit. They are not the cheapest option out there, but they are the best.
That's why I pinned Control Panel to my task bar. I use my power setting during Updates so my screens will stay on and then to set them back to balanced after they are done. I don't use any screen savers, haven't for the last ten to 15 years on any LCD screens as they don't burn in like CRT displays do.
Were I to not use it as much I'd still pin it. To find it I just ask Cortana, then click on control panel in her results. I do wish they'd left the manual Windows update on Control panel, instead of forcing the tour through settings. I do like the new options for updates and control the telemetry more so than before.
I know that Power options and other control panel pages can be had with a right click on the start button. In fact if it weren't for the three extra clicks to use it, that menu does have most of my preferred tools, so I'd use it too.
Glad all mine are done and work fine, other than uninstalling and reinstalling a few recalcitrant Apps.