Use different chromium profiles for different activities! Enjoy lightweight chrome, that has to carry only what it needs for task, plus more order as keeping separated different interested and activities (of sets of extensions) for order :).

chromium_profile_by_topic.sh

#!/bin/bash

chromium_profiles_dir="$HOME/.config/chromium_profiles/"
mkdir -p "$chromium_profiles_dir"

# echo "$ ls -1 $chromium_profiles_dir"
# select profile in "$(ls "$chromium_profiles_dir")" "make_new"; do break; done
# echo $profile
# if [ "$profile" == "make_new" ]; then
# 	read -p "Profile name (preferably no spaces):" profile
# 	mkdir -p "${chromium_profiles_dir}/${profile}"
# fi
# profile_dir="${chromium_profiles_dir}/${profile}"

profile_dir="$(zenity --filename=$HOME/.config/chromium_by_topic/ --directory --file-selection)"

if [ $? == 1 ]; then
	zenity --warning --text='It seems it was cancelled'
	exit 1
fi

if [ ! -d "$profile_dir" ]; then
	zenity --warning --text="It seems that selected directory does not exist: $profile_dir"
	exit 1
fi

# Limit cache to 50MB via --disk-cache-size=52428800
# Limit cache to 100MB via --disk-cache-size=104857600
cachesize=104857600
if [[ $profile_dir =~ ^.*limited_cache.*$ ]]; then
	cachesize=$(( $cachesize * 8 ))
	zenity --warning --text="Increased case size to : $cachesize"
fi
if [[ $profile_dir =~ ^.*proxy_flag.*$ ]]; then
	proxy_flag='--proxy-server=socks5://127.0.0.1:5432'
fi
set -x
#zenity --warning --text="case size to : ${cachesize}"
LC_ALL=en_US.utf-8 chromium --user-data-dir="${profile_dir}" --disk-cache-size="${cachesize}" "${proxy_flag}"

E.g. useful if your set of extensions blow up, for unknown reason... to me quiet often it helps to start fresh once a while and come back to old profile when I need something from there. That way chromium is more lightweight! Context: tabsoutliner.com RAM consumption: https://groups.google.com/forum/?utm_medium=email&utm_source=footer#!msg/tab-suspender/1geSXJwh8CI/EdqLuwixBAAJ . (and on the other hand, for some activities I like some extensions, for some not, with above script I can have set of extensions tailored to usecase)