• Make sure you have arranged everything with the party exchanging with you.
• Double check you have the exchange dates correct.
• Arrange with a neighbour/friend be around when your visitors arrive (assuming both parties are travelling at he same time).
• Make sure you have informed your immediate neighbours that you are exchanging (to avoid any suspicion).
• Write out instructions for appliances, alarms, the car, etc.
• Outline local activities that will be of use, such as garbage collection etc.)
• If possible, leave out a welcome pack which can include such things as:
  Map of locality.
  Local Tourist Board information and leaflets of attractions.
  A recent local paper.
  Details of local amenities.
  A limited supply of groceries (if feasible).
  Spare change of the local currency.
• Leave your house in a tidy state

Whilst at your exchange accommodation:

• Treat the house as you expect your visitors to treat yours.
• If you accidentally break anything, replace it. (Watch out for those Ming vases!).

When Leaving:

• If the owners are returning shortly after you leave, leave some groceries.
• Leave a gift of thanks if you have enjoyed your stay.
• Leave the house how you found it (or tidier!)

If both exchangers have enjoyed themselves, you may end up repeating the exchange. Alternatively, they may recommend you to another friend of relative (either in their own localty or even in another country). As well as exchange houses, you may find a friend for life.