Main Street Trade Days is a monthly market event in downtown La Porte, featuring antiques, collectibles, re-purposed furniture, and artisan vendors amongst the eclectic shops and eateries along Main Street. How to Get Vaccinated & Safely Lose the Mask With the CDC's announcement that most fully vaccinated people can go maskless indoors and out, many Houstonians are safely returning to normal life and activities. The safest way to enjoy this and many other events around Houston is to get vaccinated from COVID-19 infection. Many vaccination sites across the city are allowing walk-ins, including at NRG Park and all Houston Health Department sites. Find the nearest site, including major pharmacies, by texting your ZIP code to GETVAX (438829) in English, or VACUNA (822862) in Spanish. Admission No cover. Learn more.