We here in MN have been stuck in the cold and the gray, that being stated here are a few suggestions of fun things to do when stuck inside:

Plan your summer vacation
Take the time to make an elaborate breakfast
Nap
Make candy
Take an on-line Class or Tutorial
Redecorate
Pajama day in Bed
Shop your closet
Play adult dress up
Take a luxurious bath
Read some blogs
Popcorn and movie day
Afternoon tea
Indoor Fort
Video Game Marathon
Bake something…bread, cookies, pie…
Brain teasers
Ice ream Sundae Bar
Yoga
Write a letter and Mail it

Just a few suggestions, open to hearing from others…..