Last time your budget was this tight, you were angsting for your learner’s permit. Channel your teen years with fifteen things to do under $15. 1. Hop up on sugar with Cupcakes Actually’s dipped treats ($3.75). We love the fudge-covered chocolate muffin with peanut butter buttercream frosting. 2. Get the ball rolling with Skee-Ball at Rocket Bar for 50 cents a game. Vary your physical activity with a round of darts, which is free if you bring your own or $1 for all-you-can-play. 3. Pay what you can for tickets to Journeymen Theater Ensemble’s production of Molière’s gold-digging Tartuffe this Wednesday and Thursday, 7:30 p.m., at Church Street Theater (1742 Church Street NW). 4. Feed your appetite for culture with the National Gallery of Art’s new Spanish exhibits and coordinated cafe menu designed by José Andrés. As always, viewings are free. A summery snack like watermelon salad with goat cheese, pine nuts, and heirloom tomatoes will run you $8.75. 5. Eventide Restaurant just opened its spacious rooftop deck with city views and tempting sips like jalapeno- and cucumber-infused Paletas Fizz ($7). 6. Heat and humidity are bad enough without hair embarrassments. Pop into the Aveda Institute for a shampoo and style at a cool $15. 7. It’s not a nail-biter. Get your digits in shape with a bright polish change for $10 at Ibiza Day Spa & Salon. 8. Mid-guide power nap. Refuel with a 30-minute shut-eye session at Lunar Massage for $15. 9. Host a patio party with Proper Topper’s charity CD, A Benefit for DC Public Libraries, featuring local artists like Kitty Hawk and Shortstack. 10. Satisfy your inner voyeur with PostSecret: Confessions on Life, Death and God at Hillyer Art Space through June 26. A $5 donation gets you time with the spirituality-themed cards and refreshments. 11. If the budget’s preventing you from eating out, take fine dining home with a chic Boulevard dessert plate from Danica Imports, $8 at Tabletop. 12. Tell those flyaways to buzz off. You got a $10 metallic braided headband at Lou Lou (1601 Connecticut Avenue NW; 202-588-0027). 13. The only way you can drop the big bucks at Arlington Cinema ’n’ Drafthouse’s $1 Monday Movie nights is if your dollars are super-sized. Spend extra on dinner while you watch current flicks. 14. You need a vacation, but hauling out of town could break the bank. Play tourist in town for a day (or however long budget allows) by paddleboating around the Tidal Basin for $10/hour. 15. At the end of the day, stop by Ceiba for late-night happy hour Monday-Saturday, 9:30-11 p.m. Cocktails and apps like guac, ceviche, and a spicy chicken quesadilla are just $5 each. And for sweet 16, time to crash.