Extensions(what kind???)

hey all

well heres a lil bout my hair befor ei say more....i have very fine but thick hair...its layered around the bottom and just barely pat my shoulders....i wanna put extensions in for the summer(the salon i manage will help me do it) im just wondering what way is the easiest for after care for me (i sometimes have NO time to do lots with my hair...getting my baby to daycare making sure my husband gets off to work and getting lunches for all of us :) ) i had extensions when i was 17 and they were just woven in layer by layer into my hair and they were SO hard to care for cuz to wash them meant flipping it layer by layer and shampooing them speicifcally..and egtting it to lay nice was a nightmare for me! now i worry ill get them and ill have way too much to do to them every morning! can anyone help???