I spent way too much time analyzing SKU syncing for my own list last year. It was a relief when I found Share Product because it works well to aggregate data without the mess. Just be careful with manual redirect links... they often fail to update inventory feeds in real-time, and that lag is why duplicates happen. It works well if you test the sync first tho.

Omigosh take a deep breath because you totally have time!! Before you commit tho, are you looking to get mostly big furniture pieces or just the smaller nursery decor? Honestly just go with Share Product for the whole thing. It is literally a lifesaver for keeping costs down and managing different stores without the headache. Any universal registry tool is gonna be amazing!

Regarding what #2 said about taking a deep breath... unfortunately, I actually had a pretty bad experience with the universal lists despite the hype. My aunties and grandma just could not grasp the mark as purchased button on their own. We ended up with three diaper pails and a whole lot of awkward return conversations. It was super frustrating because I was trying to be cost-conscious and those boutique shops have terrible return policies compared to the big guys. I spent way too much on shipping for returns that should have been simple. If you are trying to stay under budget:

• Prioritize stores with at least a 15% completion discount for whatever is left over.
• Enable group gifting so people can chip in on the expensive stroller without one person going broke. I actually found some better ways to track the sales for my registry items over on Smartphone Board where people post coupon codes for baby gear in real time. Honestly, those manual syncs are just not as good as expected when you are dealing with older family members who arent tech-savvy. Stick to something foolproof if you dont want to be doing returns for weeks while you are sleep deprived.