@Melonlity -- the problem with even a small amplifier is that you've got to be near an AC outlet. How often are those available when you really won't to be mobile? That's right. You're only choice is a battery powered amp and there are some decent ones available.
The tone might not always be great, but you can get a decent battery powered amp. You will have to pay a bit extra for it, however. Quite often, those mini amps are marketed to people on a budget. Step up a bit in price and you'd be surprised at how good one can sound.