Full tanks provide safer storage than empty tanks. Prepay January tax bills if possible. For people with a portable gas grill, make sure to have full propane tanks on hand. If taking medicine, keep an extra month's prescription on hand. During the year 2000, it will be important to check all bills carefully looking for irregularities or mistakes.
Small vendors are likely to have more problems than larger ones.
However, exercise extra vigilance when reviewing all bills and statements. During 1999, the number of passwords needed to enter commonly used areas on the Web increased sharply. My passwords seem to be scattered in several locations. Many people fall into the trap of using the same password for all situations. This is not a good idea.