And here is the "soap box" part of this.

A razor knife around it cutting the paint and some elbow grease usually get it moving, then address springs or weights on them plus some soap on side helps it slide. 

Utilities, taxes (property, local vacation, & income), landscaping, furnishing / decorations / amenities, pest control, & supplies (soap, TP, etc) are the big ones on my STR calculator that you didn't mention.I'd also recommend using the enemy method to determine expected income.

For additional context on the above matter along with in depth "soap opera' back and forth, please click on this link - https://www.biggerpockets.com/forums/48/topics/1089655-warning-dont-use-ohio-cash-flow-unless-you-want-to-lose-thousands-of-dollars?

Starting with depreciation in mind is just wrong, IMHO.Now, stepping down from my soap box...

I think that it'd be a great selling point as a cheap anniversary retreat or a weekend getaway for a couple. 

Congrats to you on taking action... you're about to hit your 2 year anniversary and I'm guessing it feels like if flew by!

If you don't understand that going in to it, you will fail.Now that I'm off of my soap box.

I’ve heard of other agents buying “pop by gifts” or gifts for previous clients on closing anniversary, birthdays, holidays, monthly, etc. 

Obviously, TP and hand soap are a must.