For extra juicy chicken, marinate the chicken for 30 minutes to an hour if you have time. Use chicken thighs for more flavorful and tender meat. Warm tortillas properly to prevent tearing. Avoid overloading tacos to keep them neat. Fresh lime juice brightens the flavors. Use a cast iron skillet or grill pan for nice sear and char. Variations include adding cayenne pepper for spice, grilling chicken outdoors, vegetarian substitutions, fresh fruit salsa, and dairy-free topping options. Store leftovers in airtight containers and warm separately before serving.