Ego 176 I think. I live in Madera, and it's not where the game says it is...
-You get Overcharge, almost for free. If you did the Ego perks promo codes thing at the My Ego website thing, it will give you the Perk that allows you to get more salvage per loot drop. That links to Overcharge. When you make your character and during the tutorial and the ghost chick asks you to select your first ego Power, feel free to pick something else. I chose Cloak, then once I got another ego matrix point, I unlocked Overcharge. Keep in mind you can only have 1 Power equipped. Perks and Powers are totally different, you can only have 1 power equipped at a time, but you can have several perks equipped depending on your ego level. In order to unlock a new Power you simply have to have a perk connecting to it.
-You don't really have to buy inventory slots from the cash shop. Every so many ego levels, your inventory is expanded by 4 slots.
-You can't delete your stuff. Sell what you don't want to the boxes at friendly camps. Anything else you don't want, convert it to salvage by using the Salvage Matrix. Sometimes you want to get rid of old gear and can't sell it; check equipment slot 2 under Character. Make sure you unequip it from there as well.
-You can quick travel very easily (screw the clunky red Dodge). Hit M, look for a Blue icon that says "Quick Travel location" or something like that. Left click it to Quick travel there. Saves a ton of time particularly once you get past Madera and later areas. Most hubs will have a Blue quick travel icon.
-There's only three missions you really should worry about:
----Stars: these are Episode missions and coincide with the fluff and the show. They give green weapons and the first ones gives you an outfit (costume).
----Big Exclamation mark in a box: these are the main Story missions. Doing these gives green weapons and finishing a chain so far ends in a new outfit (costume).
----Little Exclamation mark in a diamond: these are side missions. Doing these usually gives mods for your weapons. Some of these will chain, finishing these chains will give a green or Blue weapon. [Edit] If you are on a mission side missions and others don't show up on the map. Sorry about that, I was confused as to why a bunch of side missions I had available last night weren't on the map this morning.
-This is not including drops from mobs and bosses. Bosses tend to drop greens and blues. But there is one boss in particular that always drops a blue weapon, he spawns as part of the Tranquil Surface Quest, you should see it when you do the KTAM quests.
The other missions are really optional. They're things like races, time trials, and so on. Usually they give credits, salavage, and a mod. How much you get depends on your performance.