Need to purchase extra cartridges for my new printer.

Hi everyone, I have purchased a new printer and I am planning to purchase some extra cartridges so that I don’t have to go to the market again as I have sometimes my projects going on for a long time and at nights I wouldn’t like to be stranded in middle of nowhere, so I am on the look out for good sources to purchase my ink cartridges from. Please let me know any good ones and your review on them. Thanks in advance!!!