I think this list has really overlooked the value of Guidance. In my experience, other than detect Magic, it's the best 0-level spell.
It's only +1 but the bonus stacks with just about everything.
If the rogue is going to disable a trap, cast guidance on him--he's more likely to succeed.
If someone's been poisoned and you're using your heal skill to help them resist it, cast guidance on yourself and take 10. With a good wisdom bonus, healer's kit, and guidance, that's 16+your ranks.
If you're trying to remove someone's lycanthropy with Belladona or a Remove Curse, cast Guidance on them beforehand. Every additional chance to make the save helps.
Heck, if you know you're going into combat, and you don't have anything better do do while your companions are prepping, cast guidance on someone. The bonus can be applied to hit, to damage, or to an essential save. Heck, you could probably even argue for applying it to the roll on a Cure spell. It's not much but since it's a 0-level, there's very little opportunity cost. And it remains useful at all levels.