Train a Custom GPT on your brand guidelines doc, paste any draft, and get a line-by-line compliance score with violations flagged before anything ships. The 30-minute build.
Stand up an Airtable base fed by GA4, ad spend, email and CRM, a Claude prompt that answers natural-language questions about it, and a Slack slash command so any teammate can ask 'what's our blended CAC by channel this month' and get a chart back. Full hour-by-hour build, with the prompt, the schema, and the four gotchas that will eat your weekend if you skip them.