How to identify lanes on large agarose gels?

[WS]

Hi Peter,

in order to stain the wells, you might add some BSA to your loading
buffer. Another choice would be a fluorescent ruler which you might
photograph together with the gel. That might make it easier to locate
the lanes. Why do you get such strong deviations that you can't re-
assign the bands to lanes. Too much salt?

Best regards,

Wolfgang