Here are my solutions for right now. I refuse to buy any more maternity stuff--especially since twins can come early and I just can't bear the thought of spending $$ on something to wear for 5-6 weeks!
Coat-haha. I wear hubby's. Now he is 6'4" so all his coats are plenty long; they're too long in the sleeves but I don't care. I refuse to buy a maternity coat. Again, maybe if I knew I would wear it for a solid 3-4 months, but for 1-2 more, no sirree.
Lounge/pj's--again, hubby's. I highly recommend just getting thermals in men's tall sizes if you can find them at Target or wherever. I mean a thermal "maternity" loungey shirt at Motherhood is $27. To wear around the house? I don't think so.
Pants--haha. Leggings and yoga. Leggings for work, yoga for at home and anything in the evenings. If I can't wear yoga pants, I'm not going to that event/restaurant/etc. My maternity jeans stopped fitting long ago and I never found another pair I liked.
Tops--dresses I got from Old Navy for $15. I figure even at the very end they can pass as tunics. Mostly I do dresses over leggings. Here's a link to the dresses; I got them in 3 different colors. I should have gotten the other 2 to be set for a 5-day workweek, but I do still have a couple of long tunic type tops, also from Old Navy, that are fine. Dresses (still priced at $15 plus they have like 25% off right now; material is soft and stretchy: http://oldnavy.gap.com/browse/product.do?cid=48687&vid=1&pid=255069022
Tunics: (now marked down to $8, I see) http://oldnavy.gap.com/browse/product.do?cid=5807&vid=1&pid=286559042
Shoes: I broke down and bought a nice pair of Naturalizers in a bigger size. Then I have a pair of shoes that stretched with me. At home I'm barefoot. I am really depressed at the idea of having to buy a whole new shoe-drobe once the babies are here and have avoided these thoughts. Mostly because I have plenty of shoes in good condition and can't bear the thought of having to get rid of all of them and get new flats, sneakers, boots, etc. Arg!
Another thing I refuse to buy: twin-specific maternity clothes. I have found two sites that offer multiples-specific tops and the like, and they are all priced at like $75. For a cotton tunic. Give me a break.