Next to improper grading the biggest problem I have with buying records on ebay is improper shipping.  To properly ship a record first use only a high quality mailer designed for shipping records. Don't settle for the cheap record mailers -- I recommend 200# test brown corrugated cardboard material mailers . I tried some of the lower cost mailers and as the saying goes you get what you pay for . 

The next step is taking the record out of the sleeve for shippping. This prevents the record from sliding around inside the sleeve and causing a seam spilt dreaded by collectors. 

When you fold the mailer it is very important that the corners on the mailer are  SQUARE . A perfect square corner will take much more abuse during shipping. 

Now tape the mailer very well and most importantly DOUBLE TAPE  the corners BOTH  ways . This makes the package much much stronger --- just a few pieces of extra tape makes an unbelievable difference in strength.

Cardboard filler pads placed on both sides of a record  will make the package even stronger  but they add a good bit to the cost of your packaging AND  to the cost of shipping especially if shipping internationally.  International packages get poor treatment and about 80% of the records I buy internationally arrive with damage!   Offering the option of  extra packaging with the filler pads  is awalys a good idea but just remember it can add $3.00 to the cost of mailing internationally when you consider cost of the pads + extra weight of the package.

I hope you find this information helpful