Preparing for a layoff -- well in advance

The following bit of advice came from an article titled "Surving a Layoff." I don't know who originally wrote it, as the fella who passed this on to me didn't include that info. For this reason, I'm only posting a brief excerpt.

Get everything you've been promised in writing. Remember, you cannot be forced to sign something on the spot. Take the paperwork with you, and agree to drop it off after you've had time to review it with a cool head. Consult a lawyer if need be -- especially if a lot of money is on the line or if you were axed before a bonus, commission, vesting period, or some other important deadline. Then schedule a time to come back with questions and show off your new golf swing. If you are dismissed "with cause," however, your former employer may not owe you a cent.