Ok, take some: France and some other countries are already reprocessing the waste into new fuel, abt 90%. Real waste is solidified to avoid spills with vitrification, easy to store, should be stored for just about 300 years instead of thousands bc of reprocessing. Similar thing can be done with breeding reactors. There are some operational. These basically can eat big variation of fuel including waste, the end product/waste is just like what France does with reprocessing. And at last, combine this with the new nuclear storage that Sweden has built. As result, you get a way to store safely nuclear waste that is solid, stable and will become more or less 'normal' in 300 years. And all of this with an extremely small footprint bc nuclear is so energy intense