Hi Melanie!
The answer to your question is– absolutely!
The bellmen at the hotels can move luggage for you from one Disney Hotel to another at no additional fee.
All you would have to do is advise the bell desk upon arrival that you will need their luggage transport services to a different Disneyland Resort hotel and they will give you a number to call when you're ready for them to pick up your luggage on the day you check out of your first hotel... It's as simple as that!
I think it's wonderful that you'll be experiencing both the Disneyland Hotel as well as the Grand Californian Hotel! Just to make things fair, I say you book a meal at the Paradise Pier Hotel's
Disney's PCH Grill, where Mickey Mouse will be happy to visit your table and pose for fun photos... just a thought!
Also, don't leave the
Disneyland Hotel without trying a delicious Dole Whip float! They sell them at the Disneyland Hotel's Coffee House and you can even order yours with a splash of rum.
I hope you have a Magical time at the Happiest Place on Earth.
Thanks for visiting the Disney Parks Moms Panel!
-Anabel M.