You can also find them at some gas stations.
Styrofoam sheets can be bought in any good craft shops. Some towns do not have those unfortunately in which case it is worth trying hardware stores or even looking online at what can be bought on Amazon.
Some glues melt styrofoam as those glues solvents are not compatable for styrofoam. You need an adhesive called PL300 or Clearco 444 to properly glue styrofoam.
A lot of companies provide customized boxes for shipping, but this won't be the honest answer. A lot of those companies do not actually exist, they are scammers. Then there are those do not scam, but they outsource your order to some real company, get away with your money and all you get is a bulk of substandard shipping boxes. Then there are those who delay shipments, apply a lot of hidden charges or provide poor quality boxes. I use PackagingBlue.com for my tees business and they are the ones I would like to recommend.
Shrink wrap film is good enough to wrap small boxes. It provides protection from the elements. That is an addead peace of mind whether you are shipping those boxes or keeping them in a storage.
nested boxes
You would say "those shops" in English."That" and "those" are both demonstratives.Demonstratives can be either singular or plural."That" is used with uncountable nouns or singular countable nouns."Those" is used with plural countable nouns."Shops" is a plural countable noun.
15 pencils, but if specified otherwise then its 29 x 15.
Wholesale boxes are generally cheaper than those boxes which aren't wholesale. This is the primary advantage.
1/2 pound per person if only serving pasta, otherwise 1/3 pound per person. You will have extra, but its better than running out. Get take-away boxes if its feasible. Those white styrofoam take-home boxes are great and guests love taking home food (depends on your venue though).
They are the shops which are held everyday.
Those packing "peanuts" are not Styrofoam, but rather Polystyrene foam. They are dangerously flammable and produce extremely toxic fumes in a fire. Do NOT use them to insulate your home.
To get the magical boxes on clubpenguin you must find them in the dojo and accept the offer