for the colors i use a long like pipe cleaner put through both thread and bobbin twist and put into a draw. for white , black, cream left overs i use for piecing i wind as many that will fit into a pill bottle put the lid on and put them in the draw or while i am piecing by my machine . I use only a few pins at a time and don't need the whole box so i also put my pins a a pill bottle that i'm bot
using.also for the bobbin not to unwind I will just cut off
small bit of tape and
tape the end down.