what about more crafty type things? I've jumped around quite a bit with curriculum, right now we are doing Sonlight- but I notice it perks the kids up to do something with the creative side of the brain, even if it is something as simple as adding a history pocket project or something from the Story of the World activity guide.
sometimes when I'm in a rut, {which happens a lot, even though I am a creative person, I get bogged down with just trying to stay on top of things, so I don't want to go to the trouble of being creative..} anyway, when in a rut, sometimes I just stop and take everyone for a nature walk around the neighborhood, or we go to the park and take a treat with us.
I don't know how old your kids are, but when mine were little, I really enjoyed using Five in A row, lots of creative jump off points with that.
For groundhog day, I'm going to do some activities from edhelper, make cookies or something and a craft and then go for a walk to look for shadows. Not a big deal, but fun.