Binding someone in Air is easy, as others mentioned, and as @Packrat said, it's one of the more prominent reminders of just how utterly unbalanced the channeler/non-channeler divide is in the Wheel of Time.
@Tat
Slicing Weaves: Countering incoming channeling attacks with flows of Spirit (that's easy enough), with a distracting "lash-back" effect if one of your weaves is sliced.
Multi-flow weaves: Creating lighting requires strength in both Air and Fire (as I recall, and maybe Spirit too?). It gets even more complicated when you get to the idea that the requirements for the same weave may be different for male and female channelers.
Shielding duels: Just straight up channeling strength contests, straining to cut the other person off from the One Power (magic). If the other person isn't holding the One Power, it's easy, but if the other person -is- holding the One Power, it's relatively impossible unless you a) distract them, or b) are much, much stronger than them.
Severing (hey look, I've thought of more!): It's Shielding with an edge (literally). If you succeed, you cut the other person off from the One Power forever (for certain definitions of "forever").
Overchanneling: Channel too much and you'll get really, really tired. Channel even more, and you might burn yourself out and make yourself unable to use the One Power ever again (for certain definitions of "ever again").