Further to our discussion about housekeeping and procrastination, and Basso's mention of list-making, here's an idea from the book by Rita Emmett: she recommends that you make a list of everything you've been meaning to do, but haven't; everything that needs to be checked out, changed, returned, removed, repaired, waxed, cleaned, put away, altered, organized, replaced, converted, moved, taken out, tossed out, remodeled, washed, deleted, painted, finished, decluttered, and/or purchased. Then she notes that you don't do this just once in your life, because this list constantly changes.
Anytime you start feeling overwhelmed with things to do, you need to write that list. As long as everything is floating around in your head, you can't think straight, and soon guilt and anxiety muddle your thinking. Most people report that just the act of writing out the list results in their taking care of one or several of the items within a day or two.
This reminds me of the advice in another book, "Write It Down, Make It Happen," (can't remember author right now). I've been amazed several times upon coming across old lists of things I want to do to find that I've done almost all of them, while forgetting I'd ever made the list! It's almost spooky...
The other piece I wanted to quote has to do with being Renaissance people:
A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly. Specialization is for insects. - Lazarus Long (Robert A. Heinlein, Time Enough for Love, 1973)
I made my own, very extensive, list of things I wanted to be able to do some years ago. Maybe I'll try to dig that one up.