FEAT: Leave No Trace

With your experience as a janitor, you can make a messy room or area look absolutely clean, as if no one has been in that area before. You can spend an hour in a room or area cleaning blood and stains, removing bodies and other suspicious objects, closing and re-locking containers, basically doing anything to make the room look undisturbed. Your DM might rule that some things are impossible to clean or fix, or might increase the time you'll spend if the area is extremely messy.

FEAT: Fatherly Advice

You inspire others through the singing of Classic Rock and the use of your Air Guitar or Air Drums. To do so, you use a bonus action on your turn to choose up to three creatures within 30 feet. Whenever a target makes an attack roll or a saving throw once within the next 10 minutes, the target can roll a d4 and add the number rolled to the attack roll or saving throw. You may perform this action a number of times equal to your Wisdom modifier before having to complete a short or long rest. The dice increases by 1d4 when you reach 3rd Tier (2d4), 5th tier (3d4), and 7th tier (4d4).

FEAT: I've Seen Worse

You've seen some shit, and done some shit. Gain the following features.

Smokey's Lungs: Your life in climbing up tight spaces full of dust and smoke. Because of this your lungs are able to handle smoke, dust, and smog without choking or suffering from suffocation.

Dad Bod: while you are wearing no armor, not wielding a shield and dressed in a Hawaiian shirt with socks and sandals, your AC equals 10 + your Constitution modifier + your Wisdom modifier.

He Who Smelt It...: You can create a 20-foot radius sphere of nauseating gas centered on you. The invisible cloud lingers in the air for one minute. Each creature in the effected area must make a Constitution saving throw against your dad save DC. On a failed save, the creature spends its action that turn retching and reeling. Creatures that do not need to breathe automatically succeed on the saving throw. A moderate wind disperses the stink after 4 rounds. A strong wind disperses it after one round. People will not automatically assume you released this stink cloud.

Don't Touch the Thermostat: You gain advantage on saving throws for cold or fire damage.