Hi Joanne. When I started I bought one of those savings tins with the different compartments in, left the direct debit money in the main account to take care of itself, then used cash for everything.
After a year or so I graduated to using my debit card, but then, still keeping all DD monies in one account, I opened a second account to act as my "tin".
I always, and still do, kept a close check on the balances ( internet banking is great that way) by logging in at least once a day (often more).
My opinions are merely that .. opinions based on experience. Always seek professional advice.
IVA Completed 23rd July 2013 .... C.C. 10th January 2014