Being alone can at times be boring but sometimes it's awesome as well.
You can try turning up some music and start dancing, watch movies, browse the internet for random things even if you know about them.
Paint the inside of your house, get some coloring books and start coloring or print out some coloring pages and start coloring.
Do some puzzle, clean up around the house even if it's not that dirty, bake some cookies, watch some movies on Netflix or Vudu.
You can pass lots of hours by watching movies and before you know it the day will be over and you'll be ready to sleep.