I can change the postage option no problem but most of my listings are postage included which makes it easier I think
Don't get the other half started on Postage, she's asked people before why they've charged £4 extra and when asked why they say I've got box, packaging, tape. paper, ink, petrol, she said they may as well add shoe leather to the list

I mean if your bothered about all that you must be a business
Always use recycled packing, boxes, jiffy bags just tape, paper, ink but if you get enough for the item surely few more pence isn't issue
I walk to Post Office 98% of time and have Evri drop off closer but I try not using them
Question though, if all your labels are through internet, how are Post Office making money, they were pushing tracked for extra 20p like mad like it's making them more money, so they can't get much on already paid labels, so how long before more local PO's gone, as I heard the guy in mine last year saying if people don't use us enough we'll have to close, she said about them advertising more but he said we can't, you can for us helping to promote but it didn't sound good for them and then it's a pain in arse as I'll have to drive half a mile and probably pay to park to post things or get everything collected which means I get nothing done all day else I'll miss them knocking