What do you use for sanding minute details/tiny areas?

Hi

I bought the foam sanding blocks that are used for nails they come in different grades..here is my DM Asha that I opened her eyes and used the blocks on:

 

for small areas I use the regualr sand paper, fold it around a ruler and sand with the point.

 

For very, very tiny areas, I fold a peice of sandpaper in half, but I do prefer the sanding sponges.

 

For eyes and other small areas I use jeweler's awls/reamers and tiny metal files I found at the hobby store.

You can get the awls here: http://www.firemountaingems.com/shopping.asp?skw=KWTOOLREAMER

Metal files here: http://www.ares-server.com/Ares/Ares.asp?MerchantID=RET01229&Action=Catalog&Type=Department&ID=11