This is just a lazy-ass re-post of Deneki Outdoors' tip, but it's helped me so much that I wanted to post it. I've been using this a bunch and for me, it has made my distance casting much more enjoyable and of course, distance-ier. What they show is a way to hold your running line in your line hand when casting. If you create loops of line looping in opposite directions instead of coils around your hand, you have fewer tangles. They demo it for spey casting but I use it just to shoot my WF line off my single hand rods.
What this means for me is that on most casts I can hold 3 loops of line in my hand, each one slightly smaller than the previous one. For the first loop I strip off about 8 feet of line, so doubled over it hangs down 4 feet. The next loop is about 7 feet and the one after contains 6 feet of line. Each loop exits my hand opposite the previous one. (I know, this sounds confusing. Watch the video, it explains it much better). This allows me to shoot 15-20 feet of line as needed with less resistance and much fewer tangles. Make sure you actually just open your hand to shoot the line but don't drop the line when you go for the shoot. Just let it pull out of your open hand. I had this bad habit of dropping the line as soon as it started shooting, and fixing it helped add 5 feet to my line shooting distance.
The video below demonstrates it better. The idea is to avoid coils and to create loops of line going in opposite directions out of your hand. Thanks for the tip, Deneki!