Here are some of the ones I use most frequently that are somewhat unique:
bash
# Grep Bash files
function rgb() { rg "$1" ~/.bash_aliases ; }
function rgj() { journalctl -b0 --grep="$1" --no-pager; }
function rgj4() { journalctl --since "4 hours ago" --grep="$1" --no-pager; }
function rgj1d() { journalctl --since "1 day ago" --grep="$1" --no-pager; }
function rgrc() { rg "$1" ~/.bashrc ; }
function rgt() { rg "$1" ~/.taskrc ; }
function rp() { rg "$1" ~/.bash_profile ; }
# Sharing aliases across devices
alias dba='diff -s ~/.bash_aliases ~/Sync/.bash_aliases.bak|cat' # Diff between loaded vs saved
alias ba2s='cp ~/.bash_aliases ~/Sync/.bash_aliases.bak' # Replace saved w/ loaded
alias s2ba='cp ~/Sync/.bash_aliases.bak ~/.bash_aliases' # Replace loaded w/ saved
# I have the same for bashrc and taskrc and bash_profile as well for the most part altho they are used more sparingly

Deleted my account in Fall 2025 after +15 years. Felt good