Start with the message, not the template
Write the sentence you would send to a customer in a message, then cut it to two lines. “WE OPEN AT 8 / THE COFFEE IS ALREADY ON” is a useful post. “MONDAY MOOD” is not, because it says nothing a customer can act on.
The templates are abstract poster designs with two caption zones. That makes them unusually safe for a business account: no stock photo of a grinning model, no borrowed cartoon, no accidental brand association.
Which template for which post
Use the clean stripe and checkerboard templates for opening hours, restocks and schedule changes. They read as signage, not as a joke.
Use the halftone and sunburst templates for seasonal moments and behind-the-counter humour. They are louder, so keep the caption dry.
Avoid the wavy templates for anything urgent. The pattern is soft and slow, and an urgent message on a soft background reads as indecision.
Caption ideas that stay on-brand
WE OPEN AT 8 / THE COFFEE IS ALREADY ONRESTOCK DAY / PLEASE FORM AN ORDERLY QUEUEWE CLOSE AT 6 / THE OVEN DOES NOTNEW ON THE MENU / YES, IT IS GOODWE ANSWER DMS / EVENTUALLY, BUT WE DOSMALL TEAM / SHORT QUEUE / GOOD COFFEECLOSED MONDAY / BACK TUESDAYTHANK YOU / THAT IS THE WHOLE POST
What to keep out of it
Do not joke about prices, refunds or a competitor. A meme is read quickly and remembered out of context, and a joke about money travels badly.
Do not use a customer photo or a review screenshot without permission. The built-in artwork avoids the problem entirely.
Do not post the same meme on every channel with the same crop. Export a square for Instagram and chat, and a 1200 × 675 version for X and Facebook.
A realistic workflow
Batch five posts at a time: choose five templates, write ten lines, export the PNGs into one folder. That is about ten minutes of work for a week of light posting.
Check each export at phone size before posting. If the caption is not readable without zooming, shorten it rather than exporting larger. Free exports are 1080 px, which is already enough for every feed; Pro at 2160 px is for print and for large screens.