If you like to shop for cheap you can get to Divosoria or Quiapo, where you can find a lot of things here that you need, like clothes, appliances, furniture, and souvenirs.
You can go to Quiapo under the bridge to find cheaper souvenirs, and some of them don’t cost a lot. You can go to Divisoria and find stores that are wholesalers, where you can get clothing at cheap prices.