I'm a big fan of the Japanese peanuts (popular Mexican snack, obviously...they're AKA cacahuates Japones). You can get them almost everywhere. Those little $0.59 bags of Frito-Lay sunflower seeds at the liquor store or gas station usually have the peanuts right next to them. But there's a Filipino version that takes it up a notch: Cracker Nuts.
If you have a 99 Ranch or Seafood City (or a Filipino market of any kind) near you, they'll be there. And they're worth the buy. Amazon has them as well, but a little more pricey.