target! they have shirts, sweaters, jackets, etc. in the $1 dollar section, when you first walk in.. for only $2.50!

(they also have cute clothes, pjs, etc. in the pet section, as well

) you may have to go to different stores to find the right, size, etc. they all vary in what they have in stock!
wal mart has VERY cute stuff, as well!

(in the pet section.. also, make sure you look on the end caps of the pet aisles, as well!

)
there are many sellers on here who have good prices.. but also look in the yorkie products for sale section..

people are always listing things that their babies have outgrown, never wore, etc etc