I spend a lot of time doing groundwork with Ben. We do lots and lots of grooming which he loves. We do carrot stretches and exercises. I take him on long in-hand walks around our grounds. Sometimes I practise leading him in his bridle ready for the show ring (walk, trot, backup etc.). We do a horse agility class every few months and I will often set up plastic sheets, umbrellas etc. in the arena. We sometimes lunge, but neither of us really enjoy it so we haven't done it for months now.
I have never loose schooled him. I don't like the idea of chasing him away from me and can't see the purpose in this to be honest. He likes to be near me and follow me (we sometimes play follow my leader!) If I want to exercise him properly I would rather ride him.