This is 1/2 of your request - as it's a
suggestion - but it's not a
cheap suggestion.
You're a little light on the details, but since you don't mention that you'll have to change your flight - I'll assume that you'll have a car. If you get to Orlando by 10 am, you'll have almost an extra day. So, if for some reason you can't do Disney for your extra day, I'd consider going somewhere offsite
Yes, yes, I know. . . this is a DISney Board - and it's on the Budget Board as well! - but I'd at least consider the possibility, if you have your own car.
My thinking is that now that you have almost an
entire extra day - going to DD, eating at Boma's, hanging out at the pool, etc. etc. are all fill-in activities for a 3 or 4 hours at the most. To me, doing all that would just make it seem like I was waiting an extra long time for the vacation to begin.
You have almost a whole day. Think hard about getting some discount coupons and going to SeaWorld or Univeral or IOA

I see you are still horrified. But that's what I think - since you have almost an entire extra day, I think you should at least consider
all your options.
Maybe that means you call Disney and see if you can add an extra day onto your onsite ressie and then you could probably cancel your offsite hotel entirely (you never know until you ask). Consider all your options.
A vacation is an investment in time
and money, and a whole day is too precious to waste. Now matter what you decide - have a great vacation.
