Has there been any inexpensive item that enhanced your system's sound?


For me it was an inexpensive power cord that was laying around for years, a Pangea AC9.  I have it connected to my Yamaha A S2000.  I've tried the stock cord on the Yamaha and then some of my other cords, (Wireworld, VH Flavor 4, Acronlink/Oyaide custom cord and a MAC). I've had lots of amps and integrated amps over the years, and this is the first time the Pangea contributed to making better sound. It surprised me because I had tossed it aside and forgot about it.  Power cord performance is such a crap-shoot and dependent on so many other variables in the audio chain.  Any inexpensive item you've come across that enhanced your system's sound? 
foster_9
Mapman wrote,

"No it's ridiculous. Ipod spell checker changing my words and me not catching it. 📱"

I'd be rather surprised if you wouldn't be better off with an iPad all the way around.

Re: WILLIEWONKA: By a real coincidence I just this week modified my Music Hall 5.le (Pro-Ject) tonearm by adding a 3 gram weight to the head for my Denon 103 cartridge. It did more than tighten bass. It removed almost all of the edginess on the highs as well. The weight apparently reduced vibration feedback of this lower compliance cartridge. If I find a larger counterweight, I will try the additional 3 gram tab. A real audible difference for anyone with the DL103 on a lighter arm. $15 at Amazon - see link.
http://www.amazon.com/Tonearm-Headshell-Cartridge-Weights-turntables/dp/B01B8ONJVI/ref=sr_1_4?ie=UTF...


I have Pangea power cords on both dac and preamp and made a positive difference in terms of detail and clarity on both more so on the Dac than arc sp16 preamp.