You will do it right. Take care of it ! It will add lifetime to your TCX or any other rod and fun to your obsession.
No matter if hunting or fishing, I have water and towels in my car. After fishing, I use the towel for the rod, before I pack it away. At home, out again and, as said by most others, let it dry before any further storage.
I use car wax for the rod blanks regularly, not an aggressive or abrasive one. It protects blank and varnish and reduces friction for the shooting line. Same for the reel holder and a half drop of Ballistol (weapon oil, made of plants).
For the cork I use U40 now. It protects the cork and keeps the filler in place a longer time. Apply sparsely.
Wax (many suggestions here in some threads) for the ferrules.
If prepared like that, bend it and put fish slime on it. It can be washed away easily and again, let it dry and breath.
But most important, avoid contact with stones and flies.
In case of the TCX, watch and check the mother pieces of the ferrule connections regularly and carefully. It can be a weak point with some DH rods in the TCX series. It starts with micro cracks in the varnish of the outer ferrule section and, in some cases, can continue to a crack in the ferrule itself. But if you are the first owner, Sage warranty is first class.
Wax on the ferrules can help to avoid this or at least to slow this process down.
Maintenance is one thing and everybody is different. But if you put some thoughts in it -what you obviously do- and if you take care, there is nothing more to do.
There will be some damage and some lost in material in situations over the years. Not to avoid, if you fish seriously...
Don’t be afraid too much. Fish it. Tight lines!
Time is running... A little bit of work, a little bit married, fishing, hunting... What else?