I am an Indian citizen residing in the United States. My wife and I are planning to travel to the UK for a week. We plan to apply for the UK standard visitor visa from the US. I was filling out the application and I have a few questions.

1. Travel History – The application asks for travel history to the United States, Canada, Australia and New Zealand. Considering that we’re resident aliens in the United States, should we consider all the times we’ve traveled back to the US from India?
2. Travel History – Should we also list out the times we’ve traveled to India from the US?
3. Cost of the trip – Hypothetically if we plan to spend a total of ~4,000 USD on this trip, should I split up the cost and write down 2,000 USD on my application and 2,000 USD on my wife’s application?
4. Income – From what I’ve read on the forum, my wife must say that “someone else” i.e. me – is paying for her costs and mention my GWF number in the remarks on her application. Would that be sufficient considering that I’ll be sending all income documents with my application?
5. Savings – We have joint savings accounts. Should I mention the same amount on both our applications?
6. Posting the documents – Is the up-to-date advice to send all documents in one packet? Or would sending them in separate packets at the same time be better? My thought was to annotate my wife’s packet with my GWF number if we were to send them separately.
7. Bank statements – We get e-statements. Would printing those out be enough?

Thanks a lot!