I had major purchases of bathroom improvement, major appliances, and furniture. Also a shipping container. Can I deduct the sales tax on all these?

The deduction for additional sales tax is not for "major purchases" in general, even though TurboTax uses that term. The IRS says it's for "specified items." The specified items are:

1. A motor vehicle.
2. An aircraft or boat.
3. A home or substantial addition to or major renovation of a home.

(This is a very simplified list. See the IRS instructions for Schedule A for details of the limitations and restrictions.)

The IRS does not give a precise definition of "substantial addition or major renovation." Your bathroom improvement probably qualifies as a major renovation. Appliances would not qualify unless they are built in (i.e. part of the home). Even then, just installing a few built-in appliances might not be considered a "substantial addition or major renovation." But if new appliances were installed as part of remodeling the kitchen, you could certainly include the sales tax on the appliances. Furniture and a shipping container are not in the list of specified items, so you cannot deduct the sales tax on those.

Consider: you can use the actual sales tax figure for any and all  items for which you have a receipt showing the amount of sales tax. In that case, you don't use the "default" sales tax amount.

For these "un-major" purchases that might be enough of a deduction for you.