Finding the Tyresö church is easy. Just take bus 875 from Gullmarsplan towards Tyresö church. Done! If you really want to be a bore, you can drive you car along route 73 south, divert to Tyresö and then continue along route 229 until you see the sign that says Tyresö Kyrka. We will arrange transport from the church to Kumla Herrgård.
Going from Kumla Herrgård is even easier. You go, stumble, crawl, or whatever fashion you're able to make your way forward (probably a function of how much of a success the party was), along Kumla Allé, straight foward until you hit the centre of Trollbäcken, where all the bus stops are.