I try really hard to avoid using UHS, so I'll be stuck for a few days before I finally either figure it out for myself or resort to UHS.
Sometimes I'll temporarily switch to a second or third game while I'm stuck. (Just recently finished six games in a row without using UHS, a new record for me!
)
Right now I'm playing Paradise, and I was stuck for days wandering around the harem. After checking UHS, it turned out I missed a darn hotspot! D'oh!
A lot of objects and hotspots tend to be missed in Benoît Sokal's games. (Amerzone, Syberia I & II)
That reminds me, there was someone who recently posted in this forum (can't remember who or exactly which thread) about having dozens of games sit on his shelf unfinished because he absolutely refused (almost stubbornly) to use any hints or WTs because he didn't want to "cheat"!