I suck at organization!

i try to organize my life. I really do. We bought a file cabinet to keep stuff in. Worked for awhile. Then we both stopped. Tonight I was looking for my birth certificate. Should have been in a drawer on the desk I have. Yea it's not there. Did I use it for something since David died and didn't bother to put it back? Did I move it to a safer place? I will try looking again tomorrow, but I have to admit I am organizationally challenged. Sigh!