How to stabilize speakers without spikes.

My wife won! In the interest of domestic tranquility I have relented. After living with carpet over wood floors and spikes on my speakers for many years, my wife wants to have a wood floor (maybe tile) installed in our house. I've always used spikes in my Vandersteens (2Ci) to stabilize them with a slight front tilt upward. What would you pros do now? As always, thanks for sharing your knowledge.

Tom