Think of your day as 96 15-minutes blocks. Jason recommends keeping a list of things you can do in 15 minutes. I actually keep a list of 5-minute tasks and regularly schedule time blocks titled Take 5 where I whittle away at my list and reward myself at the end.
I find it hard to believe that a shirt before 1750 would cost $3,000 in today's money. Very hard to believe. Also, I see nothing wrong with owning hundreds of books. Especially if you homeschool the numbers add up quickly.