yes the extra line is always needing attention.... I agree with Keith as what to do... simply trap it to the hull with your foot and run a 1/2 loop accross my knee. This works until i sheet out and then back in... as i then have more line... so then i try to "flick" the extra line back on the tramp.

Some times this does end up fouling the travler or back in the water... so it needs attention.

It gets really tricky when i have to adjust the jib as well... hopefully i have thought ahead and have placed the jib sheet near the side stay so i can grab it without having to come in.... I do "clip" my downhaul to my stays so they are always near by if it gets gusty...