Probably easier for most people to remember "sudo halt" than "sudo shutdown -h now", though they do the same thing.
A couple of other ideas...
1. If you want to halt the Pi on a recurring basis (say, 8 PM every Friday), set up a cron entry to halt it. That won't actually power it down, but it will do a controlled shutdown. If someone is available to do a physical power shutdown, then there won't be any issues once the cron entry has executed. (To make a cron entry, use "crontab -e". The file contains documentation on how to set up entries.)
2. If you really have to just pull the power, make sure the system is idle (no one logged in and nothing happening that will cause writing to the SD card) for about a minute, then drop the power. That will give the logic on the card time to do any wear leveling activity that might be in progress time to complete and greatly reduce the chance of corruption.