You can also add them to your coffee when perking, or coffee makers basket. Adds a little extra calcium to your diet and takes the sharp edge off strong coffee. Add grinds to your compost and it has the eggshells already in it.
You can put your dyer lint in your compost. TP /paper, towel, wrapping paper and any other paper roll make great fire starters for your wood stove. They are also good for protecting young plants from wind damage.