I do combine mailing to save you really decent money on the shipping cost. Just put items into your cart and THEN purchase, I will do the rest and if the automatic calculation for price from Ebay is wrong I will cheerfully refund the difference.
There are some items that are very heavy or I'm already using the maximum size box I can use without a surcharge that I would not be able to combine but most time I can. Any question please feel free to ask!