Removed the ugly air bag warning decals from the sun visors - total cost $3.98 (and that's Canadian Dollars) for a bottle of isopropyl alcohol. It took a bit of effort to remove all traces of the glue, but the visors look much better now.
Cheapest mod for me was the Home Depot gutter guard front grilles and black zip ties. Took the strake covers off and zip tied the grilles on, underneath, then reinstalled covers. Pretty discrete and came out looking really good for under $8.00.