One thing I just discovered it that you can do tab completion on apt install. If you don't specify a prefix, the tab completion will say "Display all 70235 possibilities? (y or n)
sudo apt install
Display all 70235 possibilities? (y or n)
So say for example you want to install p7zip-full, well just type
sudo apt install p7 and hit tab, then you'll get p7zip, hit tab again, and you will be presented with the possibilities
sudo apt install p7zip
p7zip p7zip-full p7zip-rar
This is gonna be really useful because I always forget the exact name of things.
Apt search can do the same thing.
You can do apt search '.*' to see the list of all packages.
sudo apt install u
Display all 656 possibilities? (y or n)
sudo apt install lib
Display all 26992 possibilities? (y or n)