I've seen this one asked over and over again, and always heard different things. Do you stack a chumash on top of a siddur, or the other way around?
When I was younger I was told that in extenuating circumstances one can rip toilet paper on shabbos (preferably not on the perforations) due to kavod ha'brios. This concept is applied in other places ...
Does BeRov 'Am Hadrath Melech (the King's glory is in the multitudes, ie., the more people praise HaShem together, the more glorious it is for Him) apply to making Kiddush? I've heard it said so ...
What sources are there for showing respect and honour to an old person who is not necessarily a talmid chochom or a parent?