Thanks, we haven't time for Mercado Libre although we have used it very successfully before. Same thing for Amazon.mx although their delivery times are amazing. I will check Walmart, Super Lake and the thrift stores.
Nice advice for someone in the future - doesn't help if the person having the job done 20+ years ago didn't leave any extra tiles. But they left us some extra of tiles that are no longer in the house!
Does anyone know if there is a store lakeside or in Guad that handles discontinued, or old stock of tiles? Naturally we are trying to match or come close to some 20+ year-old floor tiles. TIA