Have you ever wanted to bind a command so you don't have to type it in the console every time? This will help. Kill binding is the most common bind in TF2, and the way you do it is type, bind (any key) kill If you want to do the explode bind then replace kill with explode like this bind (any key) explode

Many commands need cheats enabled for them to work type sv_cheats 1 to activate and sv_cheats 0 to deactivate.

Now if you need to say something real fast but can't type fast set a key by typing bind (any key) "say (anything)"

This will make you be able to play and talk without holding V. Its great for playing music, I will Put them as is so you can copy the entire command, or each one individually for configuration.
// Toggle Microphone
alias "toggle_voice" "enable_voice"
alias "enable_voice" "alias toggle_voice disable_voice; +voicerecord"
alias "disable_voice" "alias toggle_voice enable_voice; -voicerecord"
bind "Anything" "toggle_voice"

Configuration is where you put all the commands so you don't have to type them every time I will explain where it should be. Click OS, then click Program files (x86), Then look for the file named Steam then under Steamapps, then under common, then under Team Fortress 2, then tf, and then cfg, now this is the last file. click on autoexec.cfg, if it is not there create a notepad and name it autoexec.cfg, once you do that paste all the commands you want into it and it will be coded into TF2.

Have fun with these Thank you and have a good one!