Going back a few years here since DD2 is 5.5yo but back when she was born, DD1 was 2.5. She was a winter baby so it wasn't until DD1 was 3 that we were really out and about often. We ended up with a City Select and honestly, I hardly ever used it in doubles mode. It was convenient to have the ability to make it a double but I used it as a single far more often. Looking back I could have survived without a double.
Mom to two amazing DDs ('07 & '09) and a fur baby.
Gluten free since Nov '11 after non-celiac gluten sensitive diagnosis. Have had great improvement or total elimination of: migraines, bloating/distention, heartburn, cystic acne, canker sores, bleeding gums, eczema on elbows, dry skin and scalp, muscle cramps, PMS, hair loss, heart palpitations, fatigue. I'm amazed.