You do not need a new idea every week. You need five kinds of post and a way to rotate them. Every business already has material for all five. Most post one kind and then run dry.
Here are the five, what each looks like for a small brand, and a rotation that fills a month without a blank screen.
Product
The thing you sell, shown properly. One product, one photo, one line about what it is for. A bakery: the sourdough cut open, with a line about the 36-hour proof. A skincare shop: the cream on a fingertip and the one thing it does. This is the post most brands make, and often the only one. Keep it, and make it one in five.
Proof
Someone else saying it worked. A review, a repeat order, a photo a customer sent, a before and after. Ask permission and use their words as they wrote them. Proof does the selling you find awkward to do yourself, and it is the post a new visitor scrolls to find.
Process
How it is made, packed, chosen or fixed. The messy bench, the box being taped, the batch cooling, the fabric being cut. People like to see the work. It also explains your price better than any argument you could write.
People
You, the team, a customer, a supplier. A face on the account changes how people read everything else you post. One picture, one line about who they are and what they do here. If you are the whole team, that is you, once a month, and it is the post that gets the most replies.
Point of view
Why you do it this way. Why linen over cotton. Why you close on Mondays. Why you do not do discounts. Opinions are what make a small brand feel like a person rather than a shop, and they give people something to agree with.
The feeling of having nothing to post comes from looking for something new. You do not need new. You need five columns.
A rotation you can keep
Two posts a week is one about the product (product or proof) and one about the people behind it (process, people or point of view). Over a month you cover all five without planning it. Put the five as headings in a note on your phone. When an idea comes, drop it under a heading. When it is time to post, take from the fullest column. If a week is thin, a proof post takes ten minutes: screenshot the review, write one line of thanks. And when one column is always empty, that is the side of the business your customers have not seen yet.
Two posts a week, on fixed days, is enough. Here is why that number, and how one photo day covers all five.
What CP3® does here
Branded Content works from your brand profile and the month's Market Trends, and drafts each post with a visual direction, a caption direction and a date, on your calendar in review. You approve it, change it or skip it. The blank screen goes away because the first draft is already there.