Looking through some ancient office files, and it's one of my (many) pet-peeves, plans folded face-in.
I probably didn't do this before I started surveying, but have definitely been doing it since - I fold them face-out, so when I'm looking through a folder, I can quickly see which one I'm looking for, without unfolding them all.
This is killing me, constantly unfolding countless copies of the same plans, till eventually I find the one I'm looking for
Fold them in such a way you can suit significant writing.
I fold them face out with the title block showing if possible. Then I write the plan book, page and the record date in the margin. It took a while before I could fold a 24" x 36" map into 8.5" x 11" nicely.
Plan folding is a lost art. So is laying out a drawing with the location of the folds being kept in mind so that it does not need to be fully opened to see significant portions of the overall product. A common problem with the typical tabloid size drawing comes when trying to copy it in two halves. Many have found it works best to put the drawing on one half and all the relevant text on the other half.
I don't much care for the plan-folding task, and fortunately I don't have to do much of it these days thanks to digital submittals. But when I do have to fold drawings -- even if it's only one sheet -- I use a hand roller, which makes an onerous task less onerous. It saves wear-and-tear on my hands and makes for a very crisp fold.