Whats a useful moneysaving tip you want to share?

Keep in mind you pay extra for convenience in many situations. It was said here before, but home cooking is the prime example.

Speaking of which, buy the stuff you use a lot off cheap, buy the expensive stuff only if you use it in small amounts. Example: I'm really into curry, so I use a lot of carrots and potatoes, the cheapest veggies here, but that alone is a bit bland. So i use moderate portions of whatever hearty veggies are in season (sweet potato, zucchini, pumpkin, eggplant). There's also this really good curry paste I like, and I didn't even bother comparing its price since I know I will need to buy a new one in half a year at the earliest.

As a consequence of that rule, skip on meat. Too expensive and too big portions. Even if you still want to celebrate the end of a week/month with it, you really need to learn some veggie recipes for the work week.

I find rice to be the perfect balance between work-intensive potatoes and pricey -in- comparison pasta. So I of course use literal 10s of kilos of it and don't buy the minute rice (again, surcharge for convenience), but from the local Asia mart for cheap.