A good GM will use things from their everyday experiences to provide challenges to the players. Stop and think about something that annoys you or causes you problems in real life. Then think about how you can use elements of that as part of a gaming obstacle or encounter. Play up the difficulties and frustration to a level where it becomes a serious hindrance or even danger to the PCs.

Imagine sending an Imperial auditor after a successful group of adventurers to go through their treasure and assess taxation. Or having a group of space traders deal with a full Customs inspection, import licence check, and so on. Or have them kept awake all night when camping in the wilderness by swarms of caterpillars constantly crawling over their faces.

Seriously, that last one is no fun whatsoever.

Transcript

Buzz Droid 2: Wash? Polish? Surface grind? Mynock removal is 'alf price today.
Obi-Wan: What? No! Get off!
Buzz Droid 1: Oi, I was 'ere first! Get your own pigeon.
Buzz Droid 2: Buzz off! I've been 'eadin' this Bernard for an 'our.
Anakin: Needless to say, I steer clear of these adorable urchins.
Obi-Wan: <sigh> I Force Push them off.
GM: They've latched on to your fighter with their tools.
GM: One of them starts smearing your canopy with a dirty rag.
Obi-Wan: Stop that!
Buzz Droid 1: That'll be five quid, guv.
Obi-Wan: What?!
R2-D2: Charge him a tenner, he's in a hurry!
[SFX]: < diki-pating papok doip whir ting >