Hey Kaitlyn, I understand how you're feeling. It's great that you and your sister are so close. Both my siblings live far off too (i.e. in another country). We check in with each other by phone regularly and whip out the webcams to see each other when we need to. It's not the same as having them in person, but the technology certainly helps a bit. Maybe you can use it to help soothe away some of the sadness you're experiencing now.

PS: I'm also always on the look out for cheaper overseas calling plans so I can talk longer for less money. I can't afford to travel; so I do what I can to work around my situation. Hope I'm giving you some useful ideas.