I inherited my grandmother's button jar. She worked as a seamstress for over 50 years. There are buttons in there from her work, others from crafts she made. Some of them I can picture vividly from outfits she or my grandfather wore. Others I have no reference for and/or they didn't catch my interest. Over the years, I have had to cull down that collection to the most precious and most interesting.
When I ventured out on my own, I made a habit of saving buttons from the most monumental outfits -- often from those extra buttons that come with the outfit. In that jar went a button from my first interview suit after I graduated college, a button from the shirt I wore when I moved into my first apartment on my own, buttons from the suits I wore anytime I got a promotion or anytime I left a significant project or job. Then, I began to add in sentimental buttons like ones from the dresses I wore to the religious ceremonies of my godchildren, one from the sweater I wore on a silly weekday rendez-vous from my BFF, another from the night I met my better half...and on and on it goes.
The button jar has been one of the sentimental areas I have struggled to purge. Sometimes I hope my practical side will win out. Other times, I imagine moving with it into retirement, clutching it in my arm.
Great memory. Thank you for this discussion, @Neetgal2
ETA: our commingled button jar is a gallon glass jar with a screw-on top. Love being able to shake it and see which bubble to the sides or top.