Short answer, yes. Long answer:
A consumer grade generator and 100 foot extension cords is not a long term solution to loss of grid power. If you are serious about remaining at your current level of usage, or at least wanting to power equipment with motors in them, consider a professional installation.

If you aren't, re-evaluate your need for electricity after a disaster and plan accordingly. If you can find a way NOT to have the electricity, prepare for it. For example, in August or September in Florida should you go to the store and buy $300 of meat to put in the freezer? Common sense now says no.

Expect the unexpected. Your fuel or generator gets stolen. You get bad gas. Can you repair the generator yourself? Don't rely on it for all your needs.

Use a automatic transfer switch, so that you don't inadvertently put electricity on the service line. Extension cords are not designed to for long term use, consider a dedicated circuit just for those things that need the electricity.

Consider alternatives like solar and wind. If you can get a good one, and have lots of batteries, you might be able to generate and store ALOT of electricity for after the storm! <img src="/images/graemlins/wink.gif" alt="" /> As for solar, there is usually PLENTY of sunshine in the days following the passing of the storm. They may be pricey, and not generate alot of power, but how much power does a string of white christmas lights need?

Want hot showers? Consider camping equipment that uses black containers to heat up water. Maybe use a turkey fryer using propane to warm up water (NOT BOILING!).

Get a small propane grill. Of course, if you have followed the advice of not stocking up on frozen food, you'll probably only use this for one or two days.

You can also buy batteries in bulk for your portable devices.

Consider a UPS. I bought a pretty good UPS ($200). It's not a cold-start one (some allow you to turn them on even without AC power, most require a hot AC connection before they will switch to batteries), but before the power went out I hooked it up to the TV and cable box. My batteries lasted longer than the cable company's. Power was back on in 2 hours. Never drained the battery. FYI: It cannot however power a microwave.

So, make the generator part of your plan, but not the whole thing. Consider alternatives.