Amazon has the Lifecolor Waterproof Diaper Bag Backpack (Orange Pink) for $30 - $9 off with coupon OX6TU4EB (Ends 1/14) = $21 with free shipping on $25+ or with Prime. Features a large main compartment, three insulated bottle pockets, waterproof diaper pocket, two side pockets.
Has excellent Amazon Reviews.
Amazon has the : XIXOV Water Resistant 17" Laptop Backpack (Gray) for $20 - $2 off with coupon IRYIEITC (Ends 2/28) = $18 with free shipping. Features USB charger, adjustable shoulder straps, multiple storage compartments and additional supplies and accessories, waterproof and anti-scratch polyester.
Has good Amazon Reviews.
Ends 1/28. Amazon has the Cambond Vintage Canvas 14" Messenger Bag (Khaki or Coffee) for $36 - $16 off with coupon WOV9OM3D = $20 with free shipping. Retail price: $60. Features multiple pockets, an adjustable strap, and fits a 14" laptop.
eBay has the Ergobaby 360 All Carry Positions Award-Winning Ergonomic Baby Carrier (Grey) for $82 with free shipping. Retail price: $160. Has excellent Amazon Reviews.