Chalks! I came across a drawer full of them yesterday and tried to use some in a paper piecing but it didn't work out. I can't bring myself to get rid if them even though the last time I used them was probably 2006. I told myself my dd would enjoy them (if I ever let her use them, lol). The good thing is they were all given to me for a dt so I didn't spend my own money on them.
I use my 2.5" xyron all the time now that I have a cameo. It beats liquid glue for titles. My refills are mostly from 2008 and they've been working fine. I love how hobby lobby incorporates a date into their price sticker so I have some idea how long stuff has been living in my home.
I also have tons of foam alpha stamps I have held on to. Again, I think dd would like to use them. I let her lose on my jewel container this summer and she used up over half of them so I know I will eventually hand over other things to her. At least that's what I keep telling myself.