Anyone have a 5+ year age gap?

The reality of our situation is that we will likely not be able to afford to have two children in childcare at the same time (it would be more than our mortgage). I hate that finances would keep us from more kids, but at the same time, I feel like a 5 year gap could have it's benefits in other areas.

4 would be our ideal age gap, but tell me about 5+.

Anyone care to share your experiences (with your own children, or your siblings)?