How to increase your income from your vacation home

One method that I use to increase income from my vacation home is to charge for additional person.
Make sure the charge is affordable, otherwise guests may just lie to you.

For example, if your holiday rental property can sleep 4 person on proper beds, but there are extra space for them to sleep on floor, then you should take this opportunity to allow them to add additional people.
Just charge a minimum fee like $10 per person per night. With this fee, give them towel, mattress, bed sheet set, pillow.  You will easily recover your cost of each set after they stay 5 nights.  
Just by offering this option at very affordable price I have managed to increase my income and recover back my cost many times over.
Try it!