I bought 2 lidded jugs from Lidl recently, 1.2ltre. very pleased with them, easy to wash.
For the freezer I use sandwich bags in oblong tubs, icecream tubs or smaller. when frozen knock out and they stack like bricks. saves space and reuses tubs. sandwich bags seem to leak when thawing, so I make sure they are either put back in the tubs to thaw or in a large jug.