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+Here’s the **deterministic, zero-cost system for Kat’s Pet Sitting**, designed to automate bookings, client intake, and pet care tracking—while maintaining a personal touch:
+
+---
+
+### **🐾 Kat’s Pet Sitting Automation Stack (100% Free)**
+**For the solo pet sitter who:**  
+✓ Needs **clients to self-book** around existing visits  
+✓ Wants **pet profiles upfront** (meds, quirks, vet contacts)  
+✓ Avoids **payment chasing** with deposits  
+✓ Automates **check-ins/photo updates** for clients  
+
+---
+
+### **🔧 The Free Tech Stack**  
+| **Tool** | **Pet-Sitting Specific Use** |  
+|----------|------------------------------|  
+| **Google Sites** | Mobile-friendly booking page with service options (e.g., "Overnight Stays" vs. "Drop-Ins") |  
+| **Calendly Free** | Shows real-time availability (blocks buffer time between visits) |  
+| **Stripe Payment Links** | Takes 50% deposit at booking (refundable if canceled >48h out) |  
+| **Google Forms** | Pet intake form (meds, feeding schedule, emergency contacts) |  
+| **Trello Free** | Tracks: *"New Booking → Vet Info Received → Visit Confirmed → Completed"* |  
+| **Google Drive** | Shared folder per client (pet photos, visit logs, vet records) |  
+| **Zapier Free** | Connects tools (e.g., new Calendly booking → auto-sends intake form) |  
+
+---
+
+### **📌 Step-by-Step Workflow**  
+
+#### **1. Booking Flow (Client Scans QR Code)**  
+- Lands on Kat’s **Google Site** with:  
+  - **Service menu**:  
+    - *30-min Drop-In: $25*  
+    - *Overnight Stay: $75/night*  
+  - **Embedded Calendly** showing only available slots (with 30min buffers between visits).  
+  - *"Required: 50% deposit to hold dates."* (Stripe Payment Link in confirmation email).  
+
+#### **2. Pet Intake (Automated)**  
+- After booking, **Zapier triggers**:  
+  - **Google Form** to client:  
+    - *"Upload a photo of your pet"*  
+    - *"Vet name/number"*  
+    - *"Medication schedule (if any)"*  
+  - **Trello card** auto-populates with responses → Kat reviews before visit.  
+
+#### **3. Visit Day**  
+- **Kat checks Trello "Confirmed" column**:  
+  - Pet’s photo, vet info, and notes pinned to top of card.  
+  - Uses **Google Sheets** (linked in Drive) to log:  
+    - *Food given*  
+    - *Medications administered*  
+    - *Behavior notes*  
+
+#### **4. Client Updates (Hands-Off)**  
+- **Zapier automates**:  
+  - **Photo updates**: Kat snaps pet pics → auto-saves to client’s **Drive folder**.  
+  - **End-of-visit report**: Generates a PDF log (Google Docs template) → emails client.  
+  - **Re-booking reminder**: 1 week before last visit, sends:  
+    *"Fluffy misses you! Reserve your next dates here."* (Calendly link).  
+
+---
+
+### **🚨 Edge Cases Solved**  
+| **Problem** | **Fix** |  
+|------------|--------|  
+| Client forgets vet info | Google Form requires field before submission. |  
+| Pet has emergency | Trello card shows **red border** if meds/allergies flagged. |  
+| No-shows | Deposits cover first visit; recurring clients pay upfront. |  
+| Last-minute cancellations | Stripe refund rules auto-apply (e.g., "<24h = no refund"). |  
+
+---
+
+### **📌 Physical Touchpoints**  
+- **QR Code Locations**:  
+  - **Business cards**: *"Scan to book + access Fluffy’s portal!"*  
+  - **Keychain tag** (left with clients): QR links to visit logs/emergency contacts.  
+
+---
+
+### **💡 Scaling Up**  
+- **Upgrade 1**: **Calendly Premium** ($8/mo) → Add "Priority Rebooking" for loyal clients.  
+- **Upgrade 2**: **Airtable** ($20/mo) → Track pet preferences (*"Whiskers loves feather toys"*).  
+- **Upgrade 3**: **Twilio** ($0.0075/SMS) → Auto-text clients during storms/extreme temps.  
+
+---
+
+### **🐶 Client Experience Script**  
+> *"Scan here to book! You’ll pick dates, pay a deposit, and fill out Fluffy’s profile—all before I arrive. You’ll get photo updates and a report card after every visit!"*  
+
+---
+
+### **🎯 Why This Works for Pet Sitters**  
+1. **No missed details**: Pet profiles are locked in before visits.  
+2. **Trust-building**: Automated updates reassure clients.  
+3. **Time savings**: 80% of admin (scheduling, forms, payments) happens pre-visit.  
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