This is a small list of Macros I use in conjunction with Grid. I am not even close to a macro expert so if you know any other useful macros or better ways than I have listed feel free to post them... you will notice that the macros are almost identical.

I love mouse over casting with Grid because that way I do not have to stop and select a target to cast. I can continually cast. Normally I keep the boss targetted so I can watch who he is targeting... and throw up a random insect swam.

Note: There are two ways to use an item's special ability in a macro.
1. To type out the inventory slot ID. ex: /use 13 (this will "use" or activate the ability of your first trinket. See below for a list of Slot IDs).
2. To type out the name of the item. /use  Ribbon of Sacrifice (I perfer this method because then it will not matter what slot the item is in... handy if you swap your gear around... The downside is if you replace the item you then need to change your macro).

0 = ammo
1 = head
2 = neck
3 = shoulder
4 = shirt
5 = chest
6 = belt
7 = legs
8 = feet
9 = wrist
10 = gloves
11 = finger 1
12 = finger 2
13 = trinket 1
14 = trinket 2
15 = back
16 = main hand
17 = off hand
18 = ranged
19 = tabard

Lifbloom: My most used spell... I am spamming this on any square that gets a red dot in the top lefthand corner as well as keeping full stacks (LBx3) on the tanks.

/use Lower City Prayerbook
/cast [target=mouseover] lifebloom

Regrowth: My second favorite spell... I think I use this too much but there is something satisfying about seeing a big (3-4k) heal then smaller ticks.

/use Ribbon of Sacrifice
/cast [target=mouseover] regrowth