For spinning I just go with the spool of line laying flat with the label up.

For baitcasters I have the spool rigged so it can rotate and have the line come off straight. I use a rifle cleaning rod stuck thru a milk crate and the spool of line.

We we use spin cast reels for the grand kids, they don't know when to quit reeling and twist the line up terrible. Letting it out behind the boat to untwist is the best way I've found, then just reel it back in and re tie.