Speaking of Idol!Swap, that is the place to go to get your goods as cheaply as possible. Not only do they spit those 1600 yen photosets so you can get your favorite girl and not have to spend all your money on full sets (Unless you like full sets like me, but I tend to get one full set and then split any other photos that I wouldn't buy the full set on), but you can get stuff from
Hello!Shop (Like photos, or Pencil boards, or Key chains/Cellphone charms, photobooks, posters, Pens, etc) and
UF-online (Which includes all concert goods, special event goods, birthday tshirts, Single release goods, etc) with their group orders. And UF-online and Helloshop.jp only ship to Japan, so we all go in together and use a really cheap proxy service (Sup FromJapan) to get goods to everyone for a little over cost. It's seriously the cheapest way to get H!P goods, since you don't have to go through a person who charges commission. I've bought things from 300-400 yen to over 30000 yen and have never not gotten my stuff
Idol!Swap is AMAZING