Caring for Tradescantia zebrina (also known as the Inch Plant) is very easy. Provide it with plenty of bright, indirect sunlight, keep the soil consistently moist (but not waterlogged) by watering when the top inch dries out, and use a well-draining potting mix. Prune regularly to prevent leggy vines. 

1. Light Requirements
To keep those vibrant silver and purple stripes, give your plant lots of bright, indirect light. An east-facing or bright, filtered south-facing window is perfect. If your plant starts turning solid green or gets leggy (stretching out with fewer leaves), it is likely telling you it needs more light.

2. Watering
Tradescantia zebrina prefers evenly moist soil, but it is sensitive to waterlogging. A good rule of thumb is to water thoroughly once the top 1 to 2 inches of soil feel dry. Use a well-draining pot and let the water drain out the bottom. Reduce watering during the winter months when the plant's growth slows down. 

3. Soil and Fertilizer
Use a high-quality, well-draining potting mix that retains some moisture but allows excess water to escape. A blend of peat or coco coir mixed with perlite works best. During the spring and summer growing season, feed the plant every 4–6 weeks using a balanced, water-soluble liquid fertilizer diluted to half strength. 

4. Pruning and Propagation
These plants are fast growers and will eventually stretch out and look sparse at the top. To maintain a bushy, full look, regularly pinch or snip back the stems just above a leaf node. Don't throw the cuttings away! You can easily propagate them by placing the stems in a jar of water (or directly into moist soil) where they will quickly grow roots. Plant the rooted cuttings back into the same pot to create an even thicker, bushier plant. 

5. Temperature and Humidity
These plants thrive in average indoor room temperatures between 65°F and 85°F (18°C to 29°C) and do fine in regular household humidity. If your home is particularly dry and the leaf tips start browning, you can boost the humidity with a pebble tray, a humidifier, or by misting. 

Note: Keep out of reach of pets! Tradescantia zebrina is considered toxic to cats and dogs if ingested, and the sap can cause minor skin irritation in humans. 

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For tips on how to properly trim and propagate your plant to achieve that full, bushy appearance: