If I were in your position, I think I would focus on open-ended toys that can be used by kids of many different ages. Like Legos- my 6 y.o. and 2 y.o. can both play with them, each at a very different level. Art supplies, dress up clothes, pretend play props, etc. Maybe let each child have a small container of their "own" toys then everything else is communal. I don't think you are depriving your children. I think they will regard their toys as more special if they have fewer of them, plus they will have a lot of learning experiences and memories from playing and sharing with their siblings. Also, your kids will become more resourceful- I don't usually bring toys with us when we travel and the kids always find a way to play with what's available. If you are able to have some special family activities or traditions, it might help your kids overcome feelings of jealousy about "things" that they may have at times. In other words, you will be able to say, for example, "Yes, your friend has all those toys, but he doesn't go ice skating with his family every weekend- some families like to OWN things but our family likes to DO things".