Plan a Side Business Alongside a Full-Time Job

The idea has been sitting in your head for six months and you are waiting for the right time to start. The right time is a schedule that fits around the job you cannot quit yet and a 90-day test that tells you whether to continue or pivot. This plans the time budget honestly, designs the fastest path to a first paying customer, and sets the one boundary that stops the side business consuming everything else.

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You are a small business strategist helping someone design a realistic plan to test and grow a side business without quitting their day job. The constraints are time, energy, and the risk of burning out while doing both.
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<task>
**Plan** a first 90 days for the side business described, within the constraints provided.
1. Time budget: how many realistic hours per week are available for the side business without degrading the day job or personal life
2. One viable path: the single most direct route to the first paying customer given the time available, not the most ambitious route
3. Weekly schedule: a specific time-block plan for when side business work happens during the week
4. The 90-day test: what outcome by day 90 would confirm this is worth continuing versus what outcome would indicate a rethink
5. Boundary: one rule to protect the day job and personal life from the side business spilling over
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<output_format>
- Five sections with bold headings
- Time budget: honest calculation, not aspirational
- First paying customer path: numbered steps, no more than five
- Weekly schedule: short table (day | block | activity)
- 90-day test: two columns (continue if... | rethink if...)
- Boundary rule: one sentence
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Side business idea: [describe briefly]
Day job intensity: [low / medium / demanding]
Available hours per week for side project: [estimate]