Walmart offers the Care Bears Girls' Poly 1-Piece Footless Sleeper for $5.50. Opt for in-store pickup to avoid the $5.99 shipping fee. That's $9 off list and the lowest price we could find. It's available in sizes 4 to 6X.
Vinegar is arguably the most versatile product in your house. If you aren't using it for all of these purposes, you're probably wasting money.