This might not be the most pressing issue. But talking with my group, we're all finding the reduction of Unseen Servant to 1 minute and requiring concentration kind of destroying it's flavor use as a housekeeper or butler etc. Apparently it's been reduced to keep people from abusing it as a trap triggering sacrificial creature (what we call the Bomb Monkey, due to us using monkeys to defuse bombs in another game).
One player hit on a good solution. Make unseen servant a ritual. Takes a day to do, lasts several days, maybe weeks depending and is tied to a location. This will prevent the abuse, while preserving the flavor usage. And as it is, I often see in APs and such various buildings that had unseen servants bound to that location. So lets get a ritual to do those. I want my tea-serving unseen servants, and unseen housekeeping staff!