Here are some parameters to make the hosting/guest experience a happy one:
Most tango travelers just want a place to crash and take a shower. Many can bring a sleeping bag and are willing to camp on the floor or a spare couch. You just need to let them know what accommodation you are offering.
Guests need access to your home and/or transportation. You should set guidelines on these two key topics. Be clear if it's OK to give them a key, or if it's troubling to have them coming in at 5 a.m. and cooking breakfast. Make sure they understand the best way to get to-and-from the venue, or if they can hitch a ride with you. Setting clear expectations makes the whole thing easier and allows both parties to have a good experience.
Hosts with pets need to make it clear so those with allergies can make good health decisions.
If you're sharing a room at a hotel, work out the number of nights and costs and have a plan for reimbursement. Remember that the hotel will only release a key to those listed on the reservation, so if a guest is arriving before you, then the hotel needs to know their name.
Being clear about your needs makes hosting much easier. Remember to let the host know exactly how many people are in your party.
Be respectful. It may not be OK to dance all night then show up at your host's place and cook breakfast at 5 am. What may seem normal to you may not work away from home.
Show appreciation. It's courtesy to treat your host to a nice dinner or something; after all, they are saving you $$.
Don't forget to share your travel dates and times. Hosts need to know when you're expected.
This guide is adapted from the great Hosting/Guesting guide developed by the Tango Porque No? Festival.