A good multilevel steamer is an invaluable piece of equipment, and I recommend that you buy a decent one – go with stainless steel rather than aluminum (sturdier) or invest in a bamboo steamer – make sure you have a pot it will fit.
Can’t find a steamer nearby and don’t want to order it? Never fear – you can improvise! In a large pot with a reasonably tight lid, place an inverted heatproof bowl or deep plate, then add water so that the bottom of the bowl/plate is still above the top of the water. Place the item to be steamed on a heatproof plate on the inverted bottom of the bowl/plate. Voila!