Setting up a gift wrap stall

I've always liked wrapping christmas presents and find I can do a pretty good job very quickly. So last christmas I was thinking of setting up a stall this coming christmas, either in a shop with their permission or outside shops. Like near Henry Street in Dublin perhaps.

Does anyone know what I'd need to consider other than the actual technical details of setting up the stall, and cost/benefit. I'm looking for advice on the legal side and permission.

Here's my ex's christmas presents from last chrimbo...