You do not need new ideas every week. Every finished project already holds three posts.
The three posts
Explain: what the client needed and what you did, in 3 to 5 lines.
Show: the result, with a clear image or short clip. Use only work you may share.
Ask: a question to your audience, or a clear "message me if you need this".
Before you post
Get the client's OK to show the work, ideally in writing (a WhatsApp message counts as a record).
Hide names, numbers, prices and private details unless the client agrees.
Do not claim results you cannot prove (for example "doubled sales").
Example (made-up)
Example: made-up freelancer, not a customer.
Project: logo and menu card for a new cafe. Explain: "A new cafe needed a menu that was easy to read in low light. Here is how I chose the type." Show: before and after of the menu card, with permission. Ask: "What is the hardest part of making a menu readable?"
Copy-paste prompt
Copy-paste prompt
Project: [what I did]. Client type: [type, no names]. Write 3 short posts in plain English: one that explains the problem and my approach, one that introduces the result (tell me which image to use), one that ends with a question. No hype, no invented numbers. Use only these facts: [my facts].