I was just wandering through my local shopping center and spotted a couple of things that might add 'color' to a spaceport or startown. The first are the stalls that sell small electronic gadgets ranging from custom covers to mobile phones to small power banks, data cables, speakers and things you can run off powerbanks like fans and reading lights. I've also seen a shopfront version of this that looked like something you'd find in a startown, the entrance was festooned with illuminated signs (Some of which advertised the shop, others were for sale.), and LED tape, inside was an array of gadgets ranging from cheap security equipment, to wireless speakers, powerbanks and lots of cheap data cables.

The second is more interesting, it's a quasi-chain of shopfront barbers shops where the patron goes to the entrance, pays an upfront fixed cost (Not only much lower than a standard barbers shop, but the same irrespective of gender.) into a machine and gets a numbered ticket. The patron then waits for the number on their ticket to come up. Once it does they take a seat and someone will cut their hair (At the one I saw the hairdressers all seemed to be young 'university student' age people.) while they watch an entertaining video (One I visited had a 'Candid Camera' type show playing on small 'tablet' type computers.).