Find biggest folder and biggest files

Find 10 biggest folder and files in current folder

du -a . | sort -nr | head

Find 25 biggest files

find . -type f -exec ls -al {} \; | sort -nr -k5 | head -n 25

Other ideas are here: https://superuser.com/questions/276487/how-to-find-the-largest-directories-or-largest-files