Sorry if this seems like a dumb question, but are there any particular banks/accounts you use for this method? I would want it to be very easy to open accounts online with no hassle if I were to use this approach.
I use several banks. Here in the UK, I use Starling & Monzo. There are also international providers such as Skrill and Transferwise. Check what is available to you. Do not be discouraged by nominal account fee. You will save much more money than bank account fees.
CapitalOne 360 allows you to instantly open savings accounts and you can have many of them (not sure what the maximum is--it's high, I've had about 8 at once). That said I liked the bank a lot better when it was ING Direct before they got acquired.
