- Keep track of all your planner supplies – washi samples on a page, stamp ink colors, catalog the pens you own etc
- Your relationship – things to work on, dates to go on
- New foods and restaurants you want to try, recipes for those new foods or tips on how to prepare them
- Warranty information on electronic, household items
- Your favorite sports team playing schedule, players info, fantasy league info
- Calligraphy, writing practice
- Couponing/sales at your favorite stores - also include hours of operation
- Start a genealogy/family tree insert
- Keep track of your knitting needles/crochet hooks – sizes, lengths…
- Sketch new quilt blocks
- List of favorite websites/etsy shops - what you order from them, what you want, discount codes
- Are you a geocacher? Use an insert just for that
- Are you a LARPER? Into cosplay? Inserts for both of those to keep track of meet-ups, costumes, roles...
- Keep a diary of antiquing sites, what you gotten, what you are looking for
- Do you collect DVD’s/Blue Rays? My son-in-law does and you can easily keep a hard copy record so you don’t repeat a buy
- Use Peerless Watercolor sheets and waterbrush pens to make a custom palette and make an insert with watercolor paper to have a to-go art kit
- If you are a collector of any kind, use different inserts to catalog different collections
- Catalog yarn, embroidery floss, fabric – quantities, colors, brands
- Do you read the bible? Favorite scriptures that help you
- Do you invent things? Keep track of those projects
- Christmas lists – ongoing, bought, inspiration, wrapping paper stock, cards to send to who
- Lists of medications and dosages for each family member
- A list of things you own that you want to upcycle, donate, sell
- Plan and start a podcast of something you are really good at and enjoy doing
- Plan and start a planner club with friends
- Like to write and know lots about a lot of things? Use an insert to plan and become a Wikipedia editor
- Create a list of weekly/monthly challenges for yourself and keep track of the ones you complete
- Create custom inserts and set up a shop on Etsy and SELL them for $$$$!
Free Templates from an Amazing TN Artist!
Does everyone know about Morgan Le Fae's Trinkets template dropbox? She has a huge variety of templates that fit a wide range of planners - both TN and ringed. She has one for 'tangle' samples that is very clever and useful. It is a free template for an insert with 'zentangle' type samples you can do...it is AWESOME! In fact, all of the templates in her dropbox are free. I currently am using three of the inserts from the dropbox, a bullet journal called Random Quotes, the tangle insert, and the 365 Every Day Matters insert. Check them out. If you like creating your own inserts it is worth while to check out her blog. She also has a Facebook group She doesn't know I'm posting this...her dropbox is 
such a generous and amazing resource I thought I would share in case you don't know about it....the picture is from her site.....
My Odd use for an Insert
I have an insert in my field-note size TN that is strictly for weekends. Weekends can be very hectic and sometimes during
the course of the week, I can forget what I need to get done so I keep an insert that just has my weekend activities. As the week progresses I add to it, including the fun things I might do with family, friends or my kids. Yes, I have calendar inserts in my regular size TN but I don't always want to carry that one on the weekends and I don't necessarily want a calendar in my smaller one, so this was the perfect solution for me. I do keep a month calendar in my smaller TN, it's the pictured one, which you can find here. It doesn't add any bulk and I can move the sticker around if I need to.
The most wonderful thing about TN's is that at any given moment you can change your TN to be exactly what you need it to be. I have a place on my bookshelf for inserts that I need occasionally but not all the time. That is really what makes my TN's so valuable to me. As I said on my Instagram account, 'I loves them, I do!'