Iced coffee costs a fortune buying from the supermarket, but ahead of a hot day you can trivially make it with just a few (cheap) ingredients.
This recipe uses butterscotch flavour golden syrup to add flavour, but you can easily substitute that for other flavourings - using other golden syrup flavours, or flavoured coffee shots
Traditionally, iced tea is lemon or peach, but on a hot day it works well with other flavours too. Alternatively, you can leave out the apple and add a couple of sliced lemons.
Can easily be modified to taste - less sugar brings the tea flavour out more.