I'm lucky, don't have kids and hubby is also a triathlete. We have two Shepherd dogs that need exercising, so they run and/or swim with us -we have several local lakes where we can all go. Doing a run "off the bike" is essential if you are going to be racing, your legs have to get used to transitioning to going back and forth instead of round and round. One time saver for me is to prepare meals in advance for the week and freeze them. I also do errands on foot or bike, every little adds up. When you go for a swim, try running there, swimming, then running home - you can carry a small rucksack with a towel and your goggles. Just towel off after the swim, put your running stuff back on and run home, you can shower once home. Many other ways to combine training and life - when I have to take my car in for service I throw a bike in the back and cycle the 15 miles home from the garage, same thing in reverse going back to pick the car up.
Edited: 18/04/2012 at 21:01