I hear ya! As the owner of a high mileage 97 Ltd, there's a ton of routine maintence that the PO never did. So I have a few 4Runner "shit-to-do" lists that I'm always going over and adding or subtracting things as I become aware of them or finish them.
Then I have the "mods-I-want-to-do" list as well that always takes a back seat to the aforementioned "shit-to-do" list.
All of which gets pushed aside by the wife's "shit-he-must-do" list that she gives me every week...
I start out with grand plans all the time! For example, today was supposed to be motor oil change, both differential oil changes, transfer case oil change, lube the driveshaft, reconnect the radio antenna with the new "Y" connector and swap out the door ajar sensor thingy in the driver door...day, but I only managed to take the wife shopping and swing by Harbor Freight for a hex head socket set...
Tomorrow is a new day though...