I've resigned to go ahead and weigh every morning but only record on loseit.com each Tuesday. I've come to accept day to day fluctuations and I don't lose any sleep over it. I record my weekly progress on loseit.com and I can clearly see the trend there by doing that.
Take a look at this weekly record from the loseit.com graph:
As you can see, I've clearly lost some weight and the trend is going in the right direction. Unfortunately I only started recording daily weight for myself starting in late February, but take a look at this DAILY graph for the past month:
If you look at the points on the graph, you can clearly see that day to day, my weight goes up and down. Sometimes it goes up by a little or not at all and other times it goes up by a lot. The important part is that the trend over time is headed in the right direction and THAT is what's important. Slow and steady wins the race with weight loss, not quick fixes. Lucky for me, my weigh in day of Tuesday has typically been a day where my weight happened to be down LOL - I count myself lucky for that but it will run out eventually and I'm sure I'll post an official gain as I go downward.