I have my own strategy to save money for a long time period like managing it when it comes to spend it and also save it in the bank but for me is I save it and I will forget that I have money in the bank that's why I save it more and especially if I needed it I have another reservation for my money in investing.
Saving is not an easy task in real life especially if you are not committed on that. Strategies like this is very effective because you will be able to save money without having any problem where to get your investment. Long term saving is good as long as you have goals but for me, I don't want to save my money in bank for long term because that money will be useless because of inflation, I will just invest it in stock market to accumulate more profit.