When you're in a long-term relationship, it's normal to fall into a routine. Although this is not necessarily a bad thing, it can make the romantic department grow a bit stale. As OB-GYN Renee Horowitz, founder of the Center for Sexual Wellness in Michigan, told WebMD, "there's biological evidence that novel experiences cause the release of dopamine in the brain." If your partner can suggest a different place, time, or even act, then you and your SO can keep the relationship staleness at bay.

A steamier bedroom may be one laundry load away. According to the Huffington Post, a study from the British brand Mecca found clean bed linens were a top turn-on for many women. Your partner may never look at the linen closet the same way again.

Sure, oysters get all of the attention, but plenty of foods may help boost your libido. Take a tip from CNN and suggest your partner make a dish with almonds or seafood, which may help enhance your sex drive because of the zinc and omega-3 fatty acid content, respectively. Trout amandine, anyone?

Even an amateur massage is still pretty incredible. You can stick to a basic shoulder rub or take a cue from Sex Info Online and gradually branch out into the erogenous zones to make it a more sensual experience. Add in a little massage oil and prepare to be turned on in a hurry.

Make a playlist with sensual slow jams to get the mood going. According to Refinery 29, some top picks include Kelly Rowland's "Motivation" and Sade's "By Your Side." But hey, sometimes old-school Barry White is where it's at.

Texting is handy, but a sending a well thought-out love letter still does wonders. As Paul Joannides, author of Guide to Getting It On!, told Men's Health, "it's really the thoughtful things you do at nonsexual times that make a woman want you." Everyone appreciates feeling appreciated, and a handwritten thank-you note/love letter combo is classy to boot.

You don't even have to be in the same room as your SO to keep the fires stoked. As explained in Women's Health Magazine, some suggestive sexting, or even just a flirty exchange of emojis, can be quite the turn-on. This one will have to be tailored to your own relationship and lives; one person may welcome a raunchy text during the workday, while another may feel paranoid about a supervisor catching a glimpse of the saucy conversation.

When you're in a more established relationship, and especially when you're living together, it's crucial to split the chores in an equitable way. According to research from the Council on Contemporary Families, partners who had an egalitarian approach to chores reportedly had more frequent and satisfying sex lives. It looks like choreplay may be a real thing.

A bath or tub soak is always relaxing, and it's even more fun when you share it with your partner. As explained in Cosmopolitan, zeroing in on on a partner's scalp or feet may be quite the libido booster, because these are both erogenous zones. Lather up and enjoy the company.

Candles are a romantic staple for a good reason. As explained in Glamour, the glowing candle light is flattering to all. And if you want to kick things up a bit, opt for a massage oil candle.

Not head games — the fun kind. As suggested in RedBook, you can play around with neckties or other restraints to really set the mood. Maybe you and your partner have some hidden kinks you can reveal.