1) Has Brexit changed your online shopping behaviour?
Not really.

2) Have shipping and taxes ever held you from buying something you really wanted?
I don’t buy much from foreign webshops. And when I do I tend to order enough to qualify for the ‘free shipping’ as that makes it less painful.
Kickstarters I always tend to prefer the ‘EU friendly’ ones.
Because you can get hit with some unexpected ‘handling fees’ if they don’t.
I’ve suffered a few of them, because I wanted the shiny more. I think there’s been only one time where in hind sight the total pledge vs taxes/shipping cost ration was a bit tooo much.

50$ shipping is not too bad when the total value is 500$, is it ?
Of course I’d rather pay less … that’s a given 😀
I’ll will have to wait and see what the Streetfighter kickstarter will be like when it finally ships and arrives.

3) How could small, one-man-operated companies band together to get their stuff to people outside their “tax-zone”?
A tabletop-gaming focused equivalent to fleabay/amazon would be great.
In theory Amazon, ebay and etsy (sp?) have options for small sellers to use their services, but it can be very hard to find stuff on those sites.   And you’ve got to be wary of scammers too. I also suspect that the cost of using those services isn’t cheap.

In a way OTT is already set up to at least have the option of providing one half of the equation (finding these small shops) and with the weekly ‘indie of the week. …'(tm) there’s bound to be a smallish boost for some of them already.

Music …
I’ve been listening to Rockabilly Mania playlist on Spotify …