I noticed on another thread that some people had been put off of Seasalt because of the high return costs. I just thought I would post a little tip I discovered - if you go to the Collect+ website and select Seasalt from the list of companies, you get a fixed rate return cost of £4.49, no matter how much you are returning. Obviously much cheaper than royal mail etc if you have bought a few different things to try.
www.collectplus.co.uk/returns/new/seasalt
Its the same with Blacks, who have a flat rate returns of £3,29 (handy for the two Didrikson I am returning, which is a whole different thread!)
hth, apologies if i am stating the obvious