Of course with our family it's easier, we simply re-emphasized speaking in Spanish to Crystina's parents. Since it was the holiday weekend we visited anyway, so this much was simple. Since you may not have your own Spanish speaking in-laws, and suggesting you remarry is impractical, I'd say just talk as much as you can in the language your child is learning. This means you'll have to learn a little of it too. Such is parenting.
Beyond that Crystina started playing Christmas songs in the car. Even though Christmas songs should not be played in the car before Thanksgiving I allowed it because she played Spanish Christmas songs. Music is one of the best ways to prod a memory, be it a child's or yours, as shown by the scientific demonstration below.
The point of this mini-post is that while Language Stars may take breaks, you don't have to. Just remember to keep finding ways to practice.
Of course you stopped reading this because you can't stop singing about how Albania borders on the Adriatic.
