Julie,
If you are the same person I just saw a post from, your lo is 5 weeks old, right?
When Arwyn was very young, we just tried our best to work around her schedule but kept the going out to a minimum or tried to have some "at home days" after a day full of outings. It gets easier as they get older and their routines become more predictable. Also, it becomes easier because they have the skills to cope better as they mature.
It used to really mess Arwyn up if we went out but once we were on a really established routine, I could make it work. I went to the mom & tots drop in and made sure she had a nap there when it was time for her nap. It was shorter than normal but she knew it was time for a nap because I did the same thing at the same time (same lullaby, same position). When I visited friends, she would get her nap too. The only hard part was shopping and in that case, I would just hope she napped in her carriage.
Now, I simply I work around her schedule and on days I can't, I don't worry about it. The key for us was having a really established routine and predictability. We now do all our "outings" between nap #1 and nap #2... Arwyn is able to hold up pretty well and we aim to be home for the naps when possible.
Hope this helps!