These are my favourite aliases.
alias c="code .";
alias life="cd ~/Desktop/Life";
Lifeis the folder where I store all my codes :)
alias deleteDSFiles="find . -name '.DS_Store' -type f -delete"
I guess this small command saves a lot of mac users.
alias yas="yarn start";
alias ..='cd ..' alias ...='cd ../..'
P.S: There are more, but these are my fav and most used.
Please comment down your favourites or something which think would help others.