I've been looking for an inexpensive way to fix the problem we have with our wood floor. What has happend is, the wood has dried out and there are now huge cracks between the floor boards...up to half an inch in some places.How can this be fixed without having to redo the whole floor?? This is in my kitchen, dining, living, master bedroom and hallway. I'm looking for something that will not crack...someone suggested mixing flood filler with sheetrock putty, filling in the cracks, letting it dry and then resanding and staining.... Any other ideas? Or has anyone tried anything like that, and has it worked?? Thank you so much!!!