Mason jar air freshener - fill a small mason jar about 1/4 full with baking soda, and add 6-8 drops of your favorite essential oil. Punch holes in the lid, and place in any spot that could use some freshening. Every once in a while, give the jar a gentle shake to boost it's air freshening power.
I'd like to do this for some meaningful fabrics and papers from my grandparents, like a little museum of tactile memories. Old wallpaper, grandpa's sweater, grandmas dress... All in tiny frames perhaps with framed photos of family mixed in - need to do this! 39 Easy DIY Ways To Create Art For Your Walls