For me it was my breastfeeding cover that a friend bought in America. At almost $30, when the rand was at R8 a dollar, it seemed extravagant, but I have used it so much! And I still love it. I didnt have the time at the time to make one myself. When I am finished feeding my second child, I want to have it made into something special for myself, like a cushion cover, or memory bag.
The other thing is all the tupperware I have - both for when LO starts feeding, I am always cooking and keeping little bits for the kids, and there are little bits of left overs, as well as for playing with in the kitchen. Now that I am a SAHM and not working, I cant afford tupperware anymore, so I am glad I bought it when I could afford it! LOL
Other than that, I have made do without monitors, fancy prams, a friend thankfully loaned me a rocker (Nathan had silent reflux and we went through a terrible phase). Even expensive toys are a waste - a bunch of hellium balloons and a bubble machine are the best things at birthday time LOL
I thought twice about everything, and its amazing how little I got by on!
I do envy moms who can afford to do up a nursery, but for me, staying at home was more important, so oneday I hope to do the kiddies room up in a nice theme - hopefully when they can help choose the theme and help with the painting!