File Manager - Droid Files is probably the most lightweight file manager (less than 3MB) in Android Market. While keeping low resources consumption, File Manager - Droid Files doesn't compromise its features and capabilities. It allows you to browse, search, rename, copy, move and delete files/folders that stored in your local storage and SD card (will add cloud storage support in future).
Some key features:
◆ Rename, copy, move and delete files/folder.
◆ Quick access to your local storage and SD card's popular folders.
◆ File browse history.
◆ Save folder as bookmark.
◆ Allow files copying/moving in background.
◆ File filter.
◆ Search files/folder by keywords.
◆ Share files.