We've used dryer sheets for several years with good results. We use the cheapest, stinkiest brand in the aisle. (If you can't smell it 10 feet away put it back on the shelf.)
We remove any paper products that would make nesting material and put a sheet in every drawer & cabinet. (You might consider wearing gloves while you place them. The scent can be hard to get off your hands.)
A side benefit is that we have had fewer problems with spiders since we started using the sheets.
2016 Roo 23IKSS / 2011 Tahoe
2011 Roo 21SS / 2011 Tahoe
2006 Bayside / 2006 4Runner
1999 SantaFe / 2001 Sienna
1967 Nimrod / 1998 Outback