Trust us, we know how hard it can be to find time to exercise when you work a 9 to 5 (or in most cases even longer than that) job. On top of that, gym memberships and workout classes can be SO expensive, especially when you don't take full advantage of them. That's why we've got you covered with a few not-so-obvious exercises you can do while you're at work. Think of it as deskercising! Trust us, multitasking is going to be SO 2015.