We spent a few days in Disneyland and Disney's California Adventure in January. We had a wonderful time!!!!! You just said that it was your hubby and yourself, which can make things a lot easier. When kids are involved, you have to make concessions for them, their energy levels etc. With just two adults we found that we were a lot more relaxed.
We stayed at Camelot Inn and Suites, which is just across the road. It wasn't anything fancy, but it was clean, and VERY convenient. It was just a few minutes ride from the front entrance of Disneyland/DCA. They provided a basic breakfast, but we brought our own breakfasts along, as I love my regular oatmeal etc.
Even though our park days had shorter hours, we still found that we had plenty of time to have a mid-day break. So we would leave the park at lunch time and have lunch elsewhere. This helped with money, but it was also nice to check other things out. We had a hire car, so we drove to shops nearby for a walk and to buy a few basic supplies.
You can take food into the parks as long as it is already prepared. Someone on another site mentioned that they weren't allowed to take sandwich 'fixings' into the park, but already made sandwiches were fine. We took our snacks with us, but also bought some special things, as we don't get to Disneyland often and wanted to try a few things. We drank water and coffee now and then, but their coffee is really not that good. At one place you could get free refills all day, but I had enough trouble finishing one of them, so definitely didn't want more. Because our hours were shorter, we had a small dinner back in our room I think, but we also got some nice food a couple of times.
You certainly walk a LOT, so wear comfortable footwear. I had no trouble with my sneakers, but I have worn them for a lot of walking before, so knew they were going to be OK. I have read it suggested that you may want to take two pairs of shoes and change in the middle of the day to avoid sore feet, but I didn't have a problem with the one pair of shoes all day.
We didn't go on a lot of rides, because we get motion sickness, but there was still SO much to do and see. I spent WAY too much time in the shops. We don't have Disney stores over here, so I had to get my Disney shopping fix out of my system while we were there.
If you buy a Park Hopper of three or more days (we had a three-day one) then this will include an Magic Morning day. This means that you can get into certain parts of Disneyland an hour earlier than other people. We found this quite useful. Even though a number of people have this ticket/pass, it was still fairly quiet and we had more room to take photos without so many people in them. We took a LOT of photos, so this was important to us.
I have read (on a Disney discussion board - http://www.disboards.com/forumdisplay.php?f=5
- I hope that I am allowed to post that) that many people go to Disneyland in the morning, then have a break and visit DCA in the afternoon. DCA closes earlier, so people then go back into Disneyland for the last hour. We would have liked to spend more time in DCA, as I know there was stuff we missed, but that will have to wait for the next trip. You definitely need more time in Disneyland.
Oh... hopefully "Fantasmic" will be back up and running. We didn't expect to see it because it doesn't usually run in winter, but they didn't have the usual parade because they were doing work along Main Street, so they ran Fantasmic every night. We watched it two nights, because it is wonderful! It is a mixture of special effects, singing, dancing, lighting/water shows and fireworks. It is difficult to describe, but I am sure you will love it! I think it will be back up and running for the summer.
Other things to catch would be the Aladdin show at DCA (we missed this but I am determined to catch it next time, because I have heard it is incredible), and the Pixar parade at DCA.
One of the rides with the longest lines is the Nemo subs. We actually enjoyed this ride and only had a 15 minute wait, which is VERY unusual, because we went there first on our Magic Morning entry day.
Oh dear... I think I've almost written a book here! I just get so excited about this topic. I LOVE everything Disney! If you have any more questions I may be able to help you, but the DIS boards are also fantastic for info.
I wish I was going again soon, but we have to wait a few years to get more money together.