Could these 3 shell aliases change your life? Probably not. They are good though.

Move, but tell me what you moved and warn me if I'm going to overwrite something.
alias mv="mv -iv"

Copy, but also copy directories recursively, and tell me what you copied, oh and tell me if I'm going to overwrite something.
alias cp="cp -riv"

Make directory, but tell me what you made, and make any missing directories too.
alias mkdir='mkdir -vp'