Hello, we are planning on going to Disneyland for one day,,my question is should we buy tickets for both DL and California Adventure or should we only do Disneyland,,,would it be to much?? And one more question about footwear,I wanted to wear Old navy Flip Flops but my sis thinks they might get sore after walking around to much what do you all think any experiences?? Any input would be greatly appreciated!!!