well for things like beans or tins i just pop a pringles lid over the top.
i use plastic takeaway boxes for most things but if you dont have space then i guess you could try the sillicone stretchy wrap things. probably have to have a look on an eco site. or type in youtube.
where abouts are you in the uk?
there may be a zero waste shop near you but they can be expensive, i cant afford them.
A good way to reduce plastic is to buy the big massive bags of pasta for £2.50, or the big massive bags of rice, sugar and tea bags (although once i found out that there are tiny bits of plastic in tea bags to seal them i switched to loose leaf - you can get a strainer that goes in the cup for £2 each at tiger and they are so good)
i have been trying to reduce plastic for 2 to 3 years now and it honestly feels like an uphill battle.
probably the best thing i can suggest is get into baking? but i only have the energy to bake in the winter because it warms up the kitchen. in fact me and dh had so much fun baking different bits and bobs this winter that i didnt have to have the heating on at all. which saved us hundreds of pounds on food and energy.
also if you have a garden then consider composting. it is sooooooo good. the main problem with landfill is the methane (dont quote me) that the rotting food produces. they cant break down effectively in a landfill and it is just bad.
also i stopped using sponges. now i use cut up clothes for rags. i dont even sew the edges, its a dishcloth-- i let it fray.
and i use bar soap instead of fairy liquid. it took a few weeks to get used to the grip of plates but now i find it so much better.
there is no taste or smell on the plates and no streaks which is what stopped me in the first place,
i also used to be a bleach freak and spent SOOOO much money on cleaning products. now i just use water for everything and soap and water for raw meat.
i have found that leaving out the bleach has made my sense of small sooooo much more sensitive. and on the whole i feel better about myself for trying to make a difference.
do you have any children? itd be nice to get them involved.
i have also have started growing food and i want to kick myself. it is so easy and cheap and the windowsills (dont have a garden) are full of colour and i feel so happy every day looking at my plants .
im currently growing peppers, tomatoes, cucumber and spinach.
spring onions regrow if you put them in a glass with water,. just cut off a bit and it grows back! i couldnt believe it.
also keep eggs in fridge and smell milk and cream before throwing it out. cream actually is fine for 2 weeks + after the sell by date. i was throwing half of it away before i started smelling it. i feel like a fool for believing the sell by date.
and batch cook and freeze if you have space,. i never buy freezer meals now because i just make a big pot and freeze 4 or 5 meals out of it. so freaking easy. saving so much money. try it all,, its great