Garage Sale Inventory and Pricing Sheet Generator

WHAT IT DOES

This userscript helps you organize a garage sale by generating inventory and pricing sheets from any webpage or manual entry. It scans any webpage for text-based lists of items, product names, or prices—product listings, shopping lists, or inventory pages—and extracts item names and suggested prices. You can assign categories, set prices, and mark items as sold. The script suggests competitive pricing based on common garage sale price ranges (e.g., Furniture: $5–50, Electronics: $2–30, Clothing: $0.50–5, Books: $0.25–2, Toys: $0.50–10), generates printable price tags, and exports the inventory as HTML (styled inventory sheet), CSV (spreadsheet), or text (price tags). It tracks total expected revenue, highlights high-value items, and creates a quick-reference sheet for sale day.

WHERE IT RUNS

The script works on any webpage with text-based lists—product listings, shopping lists, inventory pages, or any page with item names and prices. It runs entirely within your browser, reading only the visible content of the current page. It does not track your browsing history, access other tabs, or send any data externally. All inventory data is processed and stored locally.

HOW TO USE

After installation, open the panel by clicking the tool's icon in the BotGentz sidebar. Click "Scan page for items" to extract items and prices from the current page. Items are added with suggested prices based on their category. Manually add items using the "Add Item" form with name, price, and category. Use "Suggest prices for all items" to auto-price items without a set price. Mark items as sold by checking the checkbox next to each item—this updates the inventory and total value. Use the export dropdown to choose your format—HTML (styled inventory sheet), CSV (spreadsheet), or Price Tags (printable text). Click "Export" to download.

THE TECHNICAL MECHANISM

This script uses text extraction to identify items from page content. It scans lines for item names and optional prices (e.g., "$5.00"). Items are deduplicated by name. The pricing engine uses category-based price ranges (Furniture: $5–50, Electronics: $2–30, etc.) and adjusts based on item condition keywords ("new" → 1.5x, "like new" → 1.3x, "damaged" → 0.4x, "broken" → 0.2x). The inventory is stored locally in GM_setValue. The sold toggle updates the item status and recalculates totals. The HTML export generates a styled inventory sheet with summary statistics (total items, total value, sold count). The CSV export provides a spreadsheet-ready format. The price tags export creates printable text tags for each unsold item. All data is persisted across sessions.

THE PANEL

The panel is draggable anywhere on the screen and remembers its position between sessions. It can be collapsed to a small floating bubble to minimize distraction, and expanded again with a single click. The panel's width can be adjusted, and pressing the Escape key closes it instantly. All inventory data is persisted locally using GM_setValue, so your items remain intact across page reloads and browser restarts.

PLEASE NOTE

This userscript requires the free BotGentz extension to function. The script extracts items from page text and may not capture all items correctly—review and adjust the extracted list. Pricing suggestions are based on general guidelines and may not reflect actual market value. Always verify prices before your sale. The script does not access external APIs or store any data outside your browser. No data from your browsing is stored or transmitted anywhere—all processing occurs entirely in your browser.