you are venting your anger not throwing aproblem 
anyway, if you are storing Excel sheet and Words Document, a 128
Thumb drive is more than enough to kill you.
if you get insufficent space you will sure remember to store in in
your office and home everyday to clear the space, if you have more
memory you will clear it once a while. When you lost it, small
memory lost less data and to buy back it will be cheaper.
argue over 128 and 256 is very Auntie, who can use a small memory
and do the most things will score point, so the end result the
management see is who can produce result not who has the rank to
carry 256MB.
If you can produce better result with either 128 or 256MB is more
than enough to disgrace her.