I get a lot more mileage out of "have you tried..." than "why don't you just...". As a recent example, I wrote a system that auto-generates PDF packing slips from an order form, to send to a warehouse for picking and packing. Yesterday a client told me to "just make it landscape" while I was explaining why "just making it landscape" won't solve the problem of giving the warehouse whitespace to pencil stuff in, becaus…
Marriage has taught me to go even further than that. I now ask "are you telling me to get it off your chest, or you want help solving it?". If the former, I don't offer any solutions whatsoever, in any kind of format.
If someone is grieving it's probably time to just listen, but when someone is stuck with a social problem they may be rubber ducking with you rather than considering you to be a good approximation of an oracle ;)