Featured on Equestria Daily.
Featured on FiMFiction.
Review by Cerulean Voice.
Review by Undead_Wanderer

When a debt-collection company sends a representative to collect on Lyra's parents' debts, they don't care that her parents have been missing for years - the debt is legally hers. If she can't pay up, she'll lose her house.

In order to pay the debt, Lyra devises a plan that simply can not fail - she'll convert her home into an item shop and sell her way to riches! Surely Bon Bon will help, too. What could possibly go wrong?

Inspired by Recettear

Edit: Now a collaborative effort with Loyal2Luna

Commander Shepard has been through a lot, but now that the Reaper War's over he can finally relax and take a little R&R, right? Soak up the sun, grab a few drinks, spend some quality time with Tali, introduce a new race to the galaxy... wait, what?

In the aftermath of the war, a new species has been discovered amidst the destruction and fire. A species that have access to powers never seen before, powers which could prove vital to the continuation of galactic survival.

The Citadel Council has elected to send Shepard, along with the rest of the crew of the Normandy, to introduce Equestria to the universe outside of their solar system.

Now Shepard must wade through obstructive bureaucrats, antagonistic journalists, and the odd, angry prince in order to bring Equestria into a new age of space and adventure.

So settle in, it's going to be one hell of a vacation!

Now has it's own TvTropes page

The Doctor, the Doctor's companions, the Doctor's friends, the princesses, various one-shot characters... with all these characters, there's going to be too many stories to tell and not enough time in the main fanfiction.

Which is where The Merely Mundane Tales come in. They tell various short stories set in the same world as The Majestic Tale (of a Mad-Pony in a Box). You won't need to read these stories to make sense of the main plot (though I may drop minor pieces of foreshadowing in here). Anyway, enjoy!

There's no place like Donut Joe's diner to unwind after a long, hard day. Good company, great coffee, and the best dang cucumber omelette in Equestria. After the week Celestia's had, she could really, really use a place to get away from it all.

Here, the regulars all know her as Sunny Skies, the unassuming workaholic mare who hasn't taken a day off in... ever. Well, today's her lucky day. Sunny's about to have one apocalyptically long holiday.

Luna's become delirious with a fever, Discord's fled the castle in terror, there's a living moon locked in Celestia's dining room, and something is very, very wrong with Equestria's sugar.

Put on a pot of coffee, folks. We've got an all-nighter on our hooves.

Holy horseapples, Sugarfree has AMAZING FANART NOW! Cover art by the wonderful StyxLady.
Crazy huge thanks to Luminary, Brawny and Eakin for pre-reading and editing this horrid thing.

After contracting whatever disgusting virus the Tatzlwurm was carrying, Discord discovers that a runny nose and hacking cough are the least of his worries. In his weakened state, his powers have stopped working! Thankfully, he's in good hooves with Fluttershy there to help put things in perspective.

After a medical exam, Scootaloo was given the news that she only has a 20% chance of ever being able to fly. Her aunt may be willing to accept that diagnosis, but Scootaloo isn't willing to accept her fate, and is determined to fly by any means possible, no matter what risks it may bring.

Set in the same universe as "On a Rainy Day", though this story is self contained.

A diplomatic crisis arises between Equestria and the small, poor kingdom of Tarandroland, ancestral home of the reindeer. Celestia and Luna agree that it is time Luna takes a more active hand in foreign relations again, and Luna brings Twilight with her as someone she actually trusts and can talk to. But the mission turns out to be much more than political discussions - if scheming unicorn courtiers, unfriendly surly reindeer, bloodthirsty pirates, ancient sorcery and dangerous monsters weren't enough, our heroines must deal with something old - older than Luna. And is Luna really ready for diplomatic action, will Twilight learn to use a fan properly, and exactly how wrong are Spike's superhero comics about reindeer mythology?

Now has a TV tropes page

This is a fic based on the Time Loop Files, the format of which was first codified by Innortal on fanfiction.net.
Here's a brief guide.
The basic idea is, one character (the Anchor, usually the main character of a fictional setting) is looping back to the very first moments of their parent series every time either they die or some kind of time limit expires. They of course end up monumentally stir crazy given enough time.
Eventually others start to loop as well.
The reset is not always perfect. Sometimes a loop's history will be different to the "prime" loop, or canonical plot.
"Crossover" or "Fusion" loops also occur, randomly. These can involve the home loopers having a guest, or the anchor for one universe spending time in another, or replacements of one character by another.
Vacation Loops are where the Anchor (or others) decide/s "buck it" and lets off steam by doing whatever comes to mind. There's little or no attempt to maintain the original timeline.

In addition, and particularly more recently, it should be known that this story has a collaborative element to it - people may submit loop ideas or loops, ideally at the Spacebattles thread (a link to the current version of which is on the Trope page), and they may become included.

There's two page image options, thanks to Filraen - the current page image has been edited by the original creator from this work of theirs.. The other one is here:
http://hourglass-vectors.deviantart.com/art/MLP-Loops-466030169