[offthegrid416]

and know what companies I can try this on.

The method Is suited to any company.

With the actual method itself I know I need shrink wrap bags

Does the Item come with shrink wrap as per the manufacturer's original packaging?

If not, then It's obviously not necessary.

Is there any other equipment I would need?

It's taken on a case-by-case basis, hence not possible to generalize on the condition of a given Item's package/box.

Is there a difference in success rate for SB I store vs. SB online specifically for bestbuy?