Affordable cables

We all know and can't dispute that SR and other uber expensive cables can do magic with your systems however most of us aspiring audiophiles simply can't afford them. So I would like to hear from some of our colleagues who worked their way up the cable chain what if any cables priced at $100.00 or less made or make the most difference to a system. Interconnects specifically.  Thanks 
Since DIY has been mentioned - here's some advanced DIY cables that uses a slightly different approach...

They are NOT what many people would consider "cheap", but then again noting worth having ever is.

Enjoy - Steve
DIY cables always look good on paper. I even got sucked into it for a while myself. One audio bud devoted decades- not years, decades- building every idea and material, tearing down and copying, reverse-engineering, you name it. After all that his finest most proud achievement was blown away by some random old SR cable pulled from my used cable drawer and costing less when new than he paid just in parts to build his masterpiece. Not just my opinion either, he heard it himself. And was crushed. Not disappointed. Crushed.

There’s a lot of things in audio very much open to question. This ain’t one of em.

You are wrong there Steve. My simple diy ic`s are cheap but I can guarantee that you`ll never find anything better, they are perfectly clean. Only loss will be in the connections. 
I do not have a super expensive reference audio system, or golden ears, and I cannot argue which cable is objectively “best” but this i can say....on the advice of others, i went with Blue Jeans LC-1 interconnects and I am very pleased all the way around.

They have a very low capacitance rating (greatly desirable esp. for turntables), robust shielding and heavy duty connectors. A basic 2’ pair is around $32 but you can get any length you like.

The sound is a huge upgrade over my previous RCAs and I think their products are a tremendous value. As the old saying goes, they’re “all balls, and no bullshit”. For its price, I’m not sure you can do better unless you DIY