Glimmer is one of the #1 currencies in Destiny 2 and if you are not quite sure what to spend it on, we can help. There are many ways to blow all that 99,999+ Glimmer you might have. Below is a list of some items that could greatly benefit you while grinding for that higher Light level:
1. Gear Modifications
This is the number one item to buy with you well earned Glimmer. Of course, this is after you beat the game, and can access the new Tower. For those who are unaware, your Glimmer can grant you random modifications from the Gunsmith (Banshee-44). You get a random Armor or Weapon mod and a rare (blue) mods. These are super valuable though, so it’s worth the 2,500 Glimmer you have to spend on each one.

Unfortunately, this means you could end up a random assortment of mods. However, you can take all the blue mods you have to the Gunsmith and exchange them for Legendary ones. It takes 3 rares to make a legendary, so it’s becomes extremely expensive to try and acquire a specific mod for a specific piece of gear.
There is also a very rare Kinetic Weapon Mod that doesn’t drop as often. They only way to get this is to dismantle Legendary Gear mods you won’t use and get Mod Components. You have to hand in 2 of these and 1,000 Glimmer to even attempt to get a Kinetic Weapon Mod.

2. Equipping Mods to Your Gear
It’s not enough the Gunsmith wants all your Glimmer to get enough rare mods, but the expense to equip legendary mods is crazy. Rare mods cost 250 to equip your gear, were as legendary mods cost 5,000 Glimmer to equip. It’s quite a large gap.
It’s also worth it, especially if your Light level is in the upper 280’s (Powerful Engrams really help boost your Light level as well), these mods add 5 defense to your Armor and 5 Arc, Solar, Void, or Kinetic attack to your Weapons.
3. Infusion
Infusion is yet another costly addition to the gear + mod equation. Legendaries can be infused with rares, Legendaries, or an Exotic. The odd thing is, one cost more than the other. If you infuse a rare into a Legendary or an Exotic, it will cost 1,000 Glimmer and 4 Legendary Shards. Infusing a Legendary into another Legendary only cost 500 Glimmer and 1 Shard. When infusing a Legendary or Exotic into another Exotic, it only cost 500 Glimmer.
4. Shaders
Rare and Legendary shaders have a gap too, but it’s not as ridiculous as the mods. Uncommon (green) and rare shaders only cost 250 Glimmer to put on a piece of Armor. It takes 1,250 Glimmer for a rare shader on your Weapon. Legendary shaders usually look better and Bungie definitely slapped a higher price tag to it. 750 Glimmer to equip it to any piece of Armor and a whopping 3,750 to put on a Weapon. As Devrim Kay would say, pricey indeed.
5. Sparrow and Ship Shaders
Now Sparrows and Ships have the some of the most expensive tags for applying shaders. It’s kind of ridiculous when you have to spend so much to get decent mods for your characters, and make them look good. If you are lucky enough to get a decent Sparrow or Ship from Tess, why wouldn’t you want to deck it out a little? Well, it’s going to cost you.
A rare Sparrow Shader cost 3,750 Glimmer. That’s the same amount as a Legendary Shader for a Weapon. A Legendary shader cost a grand total of 11,250 Glimmer… you could re-skin your character a few times for that price.
Ships are a tad worse, because they don’t just have Shaders, they have Transmat Effects too. So to pimp your ride, at the bare minimum, will cost you 5,250 Glimmer. That’s 5,000 to apply a rare Shader and 250 to apply rare Transmat Effect. Legendaries are astronomically high. A Shader costing 15,000 to put on, and a Transmat costing 5,000.
6. Cayde‑6 is Your Best Friend
Cayde is the only Vanguard Guardian that you can purchase anything from and he sells some useful items. The number one item Cayde sells is Treasure Maps to his stashes. They are always located on whatever destination the Flashpoint is on for that week. You will see them on your map when you arrive. They cost 4,800 a map and there are 5 of them. You have a much higher chance of getting Exotic engrams to drop out of these stashes, so it’s worth your Glimmer.
The second item, which you can see above the Treasure Maps, are Scout Reports. These are not as important as the Treasure maps, but with all the Glimmer that you spend these are an easy way to make it back. Scout Reports cost 1,250 a piece, each one helping you find loot chests on all 4 destinations: EDZ (European Dead Zone), Titan, Nessus, and Io.
So there you have it! All the many expenses of Destiny 2. Some way more useful than others and hopefully you got something helpful out of this list. As you can see, there are tons of ways to spend your Glimmer even if your characters are at max Light Level. Lets just hope Bungie lowers some of the cost, because the grind for Glimmer can be somewhat of an annoyance.