optimalization

[hart.hu2015]

how can I reduce shipping costs

[lakefor94]

I compare eBay rates with PirateShip rates.  Check all options.

PirateShip offer a Priority Mail Cubic option that can save money on USPS Priority shipping. 

Check pricing of all 3 of the major carriers if buying on eBay. 

Don't ever buy at the counter. Always buy online.

[pjcdn2005]

It looks like you might be dropshipping. If so, you probably don't have much control over how the dropshipper ships their products.

[nobody*s_perfect]

Don't use Media Mail for ineligible items, such as paper napkins and toilet paper!

As noted, check the rates with sources other than eBay, especially if they offer the Cubic rates (such as Pirateship).   Set your first shipping option as the cheaper one; for instance if you offer both Priority Mail and Ground Advantage list the GA option first.

[mtgraves7984]

You can reduce shipping problems  by NOT offering Media Mail, as none of your listings qualify. 

[12345jamesstamps]

Registered in Hungary but shipping from the USA...returns will not go well for you.

And "Media Mail"...we don't read toilet paper but rather use it to wipe the you know what.

[ebooksdiva]

You cannot ship toilet paper as media mail

Media mail Service is for :

• Books (at least 8 pages).
• Sound recordings and video recordings, such as CDs and DVDs.
• Play scripts and manuscripts for books, periodicals, and music.
• Printed music.
• Computer-readable media containing prerecorded information and guides or scripts prepared solely for use with such media.
• Sixteen millimeter or narrower width films.
• Printed objective test materials and their accessories.
• Printed educational reference charts.
• Loose-leaf pages and their binders consisting of medical information for distribution to doctors, hospitals, medical schools, and medical students