to prepare, or to make arrangements for something a long time in advance
plan ahead
a person or business is in debt and owes money (A) or a bank account balance that has dipped below zero (Br)
in the red
to spend a lot of money on buying goods, especially expensive goods
splurge
happening inside a store
in-store
bought, used, etc. using the internet
online
to allow yourself or another person to have something enjoyable, especially more than is good for you
indulge
a large number of vehicles close together and unable to move or moving very slowly
traffic jam