I'm there with you, Suzanne. I have two kids, I live in a tiny town, my house is not decorated at all, we do the same thing every day . . . so my challenge was in the post-processing. I managed to make some pretty dull, boring pictures interesting with skills I improved over the year. Cropping, rotating, different blend modes. One of my favorites for the year was a horribly-lit snapshot of my daughter. I couldn't fix the lighting, the background was horrendous. it was slightly blurry and because my camera loves noise, it looked like she was standing in a digital snowstorm. I almost threw it out, until I converted it to black & white, and then clipped it to a brushed mask to hide the background. All of a sudden, it was a very good shot, and one of my favorites.
So to encourage you, just take the pictures every day. Don't think about whether you "already have one of those," or if it's exciting enough. It won't matter in the end. I couldn't use the majority of the list from GIYBS, nor could I use most from Becky Higgins' list two years ago, I just don't have access to many of those things. But they helped get me thinking.
One side effect of doing the project last year was in desperate search for subjects, I fell in love with our landscape here, making trips at least twice a week to our local NWR. I learned to love watching for birds and now I see them everywhere. My life is better because of it.
Just in your signature, I see all sorts of possibilities. You're a book lover. Take a picture each day for a week of your seven favorite books. Journal about why you love them, so that your great-grandchildren will know you better.
You're a crafter. Take a picture each day for a week of different crafts, crafting implements, supplies, where you do your crafting. Do you do it in a room? By the TV? With your family? After they're in bed? Do you give them away? (Ha! Your crafts, not your family!) There are all sorts of possibilities.
You've got a blue belt in MMA (I'm a huge MMA fan, by the way!). That's unusual for a woman. Take a picture of your equipment, or where you train, tell the stories of how you got interested. Are you into jujitsu? Boxing style? Are you more of a wrestler? Have you competed?
Just trying to help you out. Stay encouraged. It shouldn't be stressful. When I ran out of inspiration, I just shrugged my shoulders and took pictures of squirrels and lizards. And eventually the spark hit again.
Something will work for you---just don't worry about it. Worrying makes it no fun.
Sarah