With regard to not being to find something when you need it,here is a surefire way to avoid this ;
When I asked an old friend how he managed to find anything in his totally untidy workshop,his reply was :
"Ti,s purely a question of remembering where you last dropped it "
Not sure if it,s any help,but it,s food for thought
PS I now have three small angle grinders,reason being that the first one went AWOL,was replaced by another,which followed suit. Bought another one,two days later,first one showed up. No 2 is still missing,but I live in hope.