On Eating Out! My best word of advise on this subject is: Don't hold them when you go eat at restaurants. How long do you really think they will be happy sitting on your lap? How happy will you be trying to feed yourself and feed a child squirming around on your lap? Let them sit in their own chairs. It's the easiest thing in the world to do. They will eat better and have better manners.
If you are struggling with this, here are some ideas:
a. To get started, go eat at an odd time (mid-morning or early dinner) and teach them that everyone sits in their own chairs, no exceptions. I guarantee if you think they just won't sit, it's because they've always had a choice. Use the strap in highchair so there's no temptation to squirm down. There might be some whining and crying, but try and stay at least 30 minutes. I wouldn't be surprised if after 5 minutes, they realize, "Oh, I need to stay in my chair". Kids are so smart and easily taught if you just give them the chance. Don't worry about anyone around you. I they want peace and quiet, they should eat at home!
b. Bring their favorite book and some little toys you know they like (little people, polly pockets, little plastic animals). Wait just a little before getting out their toys. They will be happy with the change of scenery and the waiter at first. Then, don't pile all the toys in front of them, but give them the books and toys slowly...one at a time. As they get older, you can bring stickers, crayons, markers, maze books, ect...
c. Don't feed them before you go out. This is key! Bring at least one of their favorite healthy foods (tupperware of strawberries, yogurt, a banana). Don't let them eat before everyone else gets their food. If it's taking a long time to get your order, bring out the snack. Don't, whatever you do, ask for their food early. They should eat when you are eating. Once they are done eating, they won't want to stay much longer.
I think you will be shocked at how easy it is to enjoy an hour long meal with actual visiting and conversation with family and friends. It's really fun!