The most commonly sited were:
- Head down for bridling
- Stand still while mounting (and following mounting)
- Tie up
- Step back when asked (eg. when entering stable with food)
- Turn and face in any situation
- Come to me in the paddock
- Stand for hosing, fly spray, clipping
- Self-loading into the trailer
- Calm down (head down) from the ground or saddle - simple but only useful in the 'big wide world' if used in conjunction with give to the bit, travel in frame, pay attention and so on. Don't rely on this simple (5 mins to teach) cue alone.
You may have a few others to add to this list but if your horse does all of the above I am sure that you are now spending your time advancing his training. None of these lessons take long but we often ignore them because we haven't got time to address them at that moment, or at least feel that we don't.
Most of them are 5 minute lessons (with the exception of the trailer loading if you have a horse that has already learned something else!)