Ask the team to decide

Use Create poll in the message box. Give it a question, then add the things people are choosing between.

An option can be a picture, not a description of one. Each option row takes Add image, so four designs go in as four designs. Caption (optional) is optional once an option has an image. Anyone reading the channel can click a picture to see it full size.

Why it matters. Choosing between four designs, two supplier quotes or three headlines is the same job every time: a question, some options, some people, a deadline, and an answer with a reason. Doing it by writing "Option A" and pasting a picture underneath gets you comments in no particular order and nothing you can point at in six months.

Decide how people should answer

How should people answer? offers two ways.

Pick one is a straight vote. Turn on Allow multiple answers if people may choose more than one.

Score every option asks everyone to score every option instead, and ranks them by average. This is usually the better one for design work: people can reliably tell you something is a six when they cannot tell you what would make it a ten.

Top score sets how high the scores go. Five is the default on purpose. Nobody can defend the difference between a seven and an eight, and a wider scale only makes the resulting average look more certain than the judgement behind it.

Notes on a single option

Anyone can attach a short note to one option, so "the spacing is off" sits on the option it is about instead of somewhere in a pile of replies. Open an option and use Add a note.

You cannot reply to a note, and that is deliberate. A note is a verdict about one option. If notes could be replied to, a four-option question would grow four separate arguments and nobody could read the discussion from start to finish. All real back and forth belongs in the message's thread, which stays the one place the decision was argued: Threads

You can delete your own notes. You cannot delete anybody else's.

Give it a deadline

Close voting at a set time sets when answering stops. Decisions rot quietly, and a deadline is what stops one sitting untouched for three weeks.

Close it, and say why

When you have your answer, close it and record Which option won? together with Why? One line.. The card then leads with the option you chose and the sentence explaining it.

That sentence is the reason to close a decision properly rather than letting it expire. Months later, "we went with the second one because it holds up on a phone" is the only part anybody needs.

Only the person who asked, or a channel owner or admin, can close it.

What is waiting on you

Waiting on you sits above your conversation list and shows open questions, from every channel, that you have not answered yet. Soonest deadline first. It disappears entirely when there is nothing waiting, and it never lists your own questions, since you are not waiting on yourself.