When you are planning your Disneyland vacation, you should note that some days are better than, others at the park. The days that you choose to be there will depend greatly on whether you are more interested in attractions or entertainment – or both.
For instance, Tuesday's, Wednesday's, & Thursday's are the days when you will have shorter lines for the attractions, because there will be fewer people there. On the other hand, the entertainment on those nights cannot compare to the entertainment that is offered on the weekends. If entertainment is important, plan your visit to Disneyland for the weekend.
If you will be at Disneyland for several days, however, plan to ride the attractions on Tuesday, Wednesday and Thursday, and then enjoy the entertainment, as well as the other things the park has to offer on the other days. If you are visiting during the off-season, you should note that entertainment usually isn't offered on weekdays. Also remember that the park really fills up as the day wears on, so try to ride the attractions in the morning if possible!