Blkcloud, Im sorry to hear that you have decided to go with the USPS. But, if insurance, trackablity, and day-definite guaranteed shipping is not needed for the majority of your shipments, then it would make more sense to use the post office. But be careful! Believe it or not, our rates beat the pants off of the post office once you get much above 5 pounds, so segmenting your shipments between UPS and the USPS based on weight would be the way to go.
As for address corrections, they are an unfortunate consequence of the shipping business. And yes, I understand where it would seem like it would make more sense for us to go after the consignee (receiver) for any address correction, but they are not truly a UPS customer for this shipment. What I mean is that you and UPS have entered into a business agreement we promise to deliver a package where you tell us to, and you promise to pay for that service. The consignee has nothing to do with that. So, we really have no basis to request payment from him (unless you are sending a package COD, and for that we have entered into an entirely separate agreement with different parameters). But believe me; I understand what kinds of problems accessorial charges cause to our customers. You, as well as 99% of UPS shippers, cannot go back and bill your customers for their errors to get reimbursement for what we charge you after you receive initial payment. And that totally erodes your profit margin. So if you sell your product for $25 and have a 10% margin, you are losing $2.50 a shipment when you get hit with an address correction instead of making $2.50 in profit. And I am sure that is not why you went into business!!!
I know you are not using UPS for most of your shipments now, but let me suggest to you what I would suggest if I was your AE add an additional amount to what you charge for shipping to help offset your accessorial charges. For customers receiving discounts, I would suggest charging UPS list rates and then using the difference to pay for the accessorial charges that you will undoubtedly be receiving. If a customer was not getting a discount from us, I would suggest a nominal flat fee or percentage of the shipping charges. You know how on TV commercials they say add $10 for SHIPPING and HANDLING? Well, the difference in what you are charged by UPS and what you charge your customer is your handling fee.
Hope this helps