I've 2 pumps! The bulkier one for home use, then a smaller cheaper one when I'm out. I'm using real bubee, only cost $20! I think spectra S9 is also portable!
You may purchase packit which will keep your breast milk cool.
Also purchase the tommee tippee portable warmer, which is essentially a flask to hold hot water and a cover which you can pour the water into and place the bottle to warm the milk.
$10 Off SHOPEE: CINDY834