Two thoughts immediately come to mind.  If money were no object and the lazy day was actually a weekend, I would travel.  I have a goal to ride the Carson County Carousel some summer.  I would like hubby to see Maui or some place on Hawaii other than the military bases.  If it were summer, Yellowstone would be a great weekend runaway.
Given the current state of life, however, the other thought is a lazy weekend existing of sleeping in, a drive to the mountains or out to the desert with a camera; window shopping at a craft store or the mall.  Stitching or quilting may occur and possibly video games like Katamari, Kingdom Hearts, and silly ones on the laptop or tablet.
I’m lucky in having many lazy weekends, probably more than I should take. If I look around the house, many projects could be done if I put in more effort. Cleaning, simple inexpensive repairs, even some DIY upgrades could be done if I got up early on a weekend and worked the way I remember my father doing. My yard would look fantastic if I spent even 30 minutes a day on it.
This begs the question, at what point do you take a lazy day without feeling guilt for things undone.  Could you do more toward your goals if non-essential things didn’t worm their way into your life? Would you want to do more than you do now?
I would love to hear your answer to the topic and resulting questions.  If you blog, post a link in the comments.  If you don’t blog feel free to answer in the comments.