Curious to get some opinions here since we're trying to add a 14-50 outlet to the garage for my parents MYLR. As you can see, the panel is full and located in the basement just adjacent and below to the attached garage. We already have a conduit from one of the circuits going through the garage to a split air ac unit on the second floor. There's a junction box on that circuit exactly where we'd like to place the plug in the garage. Since we're out of breakers, the person who helped install the split air units suggested that we add a small sub panel directly next to this panel but I was hoping we could combine some of the remaining circuits by adding more tandem breakers to free up a pair of slots. A sub panel seems excessive in this case and if we were to go that route, I think we'd prefer the sub panel to be installed in the garage instead. Thoughts?