boxes
JanDarby said:
Many agents advise against using a box, saying they prefer a manuscript held together by rubber bands alone, and inserted into an envelope like the Tyvek ones you get from the Post Office for Priority Mail. Boxes are a nuisance for them to store and/or throw out.
And for a 400-age manuscript, you're probably going to use Priority Mail (same rate as first class at that weight, and Media Mail doesn't apply to manuscripts), so you might as well use their free envelope.
Most I know prefer boxes, if you use real manuscript mailers, and not some stray box you find that will hold teh manuscript. I don't think it really matters, but I find boxes much easier to store because they stack one heck of a lot better than envelopes, and aren't any more difficult to throw away. The manuscript can stay inside the inner box until time to use or return it, and there's much less chance of return postage and manuscript being separated.
I'm talking real manuscript mailers here, of course, and not some stray box you find that fits.
What everyone hates are those padded envelopes that spray gray vomit everywhere when you tear one open. It doesn't take very many of those to cover you, the floor, and to gunk up every piece of office equipment you have. That gray vomit gets sucked into computers and printers, into the air vent of your office, and it's like dealing with Tribbles.