This is my method:

Inside a #1 Bubble mailer
1. LOR
2. Blue Bic
3. ROMLB (I wrap mine in a paper towel with hopes the person will return it wrapped so the signature will not smudge, I have seen people use ziplocs or sandwich bags as well.)
4. #0 Bubble mailer SASE w/ $2.07 postage

#1 Bubble mailer postage is $2.24

Get your ROMLB online to save money, I've used this website before they are very reasonably priced.
http://www.autographsupplies.com/

ROMLB $11.00
Postage $4.31
Bic $0.10
#0 & #1 Bubble mailer $1.50
Total: $16.91

You could probably lower this price a little bit based on where you buy your bubble mailers, for instance if you buy them in bulk you could get a lower price. I just buy mine at Wal-mart as I need them. They are worth the investment though, they look very nice signed and are a great addition to any collection.

As a side note not every player will sign a ROMLB for free (particularly HOF'ers) so you have to take into consideration players fee's.

Good luck to you!!



Do they ROMLBs they sell come in the display cubes??

I can get them locally at a sporting goods store for $11.99+tax all day and they come in a display cube.