The sun will come out tomorrow!

  Congratulations!

If you're happy with the offer, I'd say skip the other interviews. 

If you are happy with your current offer, I would skip the other interviews. If you think one might be an awesome oppportunity and you are comfortable quitting a job you just started if offered another, then I'd go. You never know. I'd feel a little weird about taking time off at the new job to go on an interview unless, of course, you had the idea it was the dream job. Seems like wasting a lot of people's time.

Woo hoo! Congratulations, Jonda. Sending great new job vibes your way.
If you are happy about the new job, and you think it will meet your requirements, then I think I would call and cancel the other two interviews. You are giving someone else a better chance at a new job by declining the interviews.

Congratulations.
I'd go to the other interviews, perhaps one of those jobs is a better fit, and how would you know without going?

Congratulations!!!

Definitely do the interview that happens before you start. And do the other one as well if you think you can get the day off from your new job without jeopardizing it. It's always good to explore what else is out there.

Congrats!!! I would definitely go on the interview before you start. Honestly, I don't know if I would go on the second interview or not. It really depends on how the new job is going and how lucrative the other position is.

I hear this a lot........nothing for long periods of time and then they flood in at the same time.  I would go to whatever interview I could go to without taking a chance of pissing off my new employer. In other words, I would definitely go to the one before you start but the one after you start, I might have to see if it could be done after hours or I would cancel it.  As for the trial period, pretty much every job has a trial period even if it isn't specifically stated up front so I wouldn't worry about that part.  One of the other jobs is a job that you believe would be your perfect job so I would want to know more about it and go to the interview.  Keep in mind that nobody is going to look out for you like you will look out for you.  Just like a company has to do what is best for them, you have to do what is best for you.  I will say though that I might try to see if there was any way to move up the interview that isn't until after you start your other job.  I would much rather back out of a job I never started than to go in for a few days/weeks and then quit.  And, I would assume that if I start and turn around and quit a few days/weeks later, that is a bridge that has been burned and I will never be able to go back there.    

Yes this!!

If I had already accepted a position I would have a hard time going on another interview. It would feel dishonest to me. Congratulations on your job!

Congratulations!!!

I agree with (almost) everyone else. Go to the first interview before you start the new job. Go to the other one if you can work it out and especially if that's the one that is your dream job. If you have to quit the new job before you start or even slightly after starting, do it.

In my youth, I would have said you have to keep the first job you accepted. I have become much more jaded about these things. I see the terrible things employers do to their employees, and now I believe you owe them absolutely no loyalty. (Unless, perhaps, they have shown you extraordinarily good treatment during your time with them. Then maybe you owe them some loyalty. I mean like that guy in MA whose factory burned down and he continued paying his employees for months while it was rebuilt. If you had that boss, I would suggest treating him well.)

And congrats. I am delighted for you.

Congratulations! I'd do both if you don't have to take time off. Otherwise, just do the first.