Honestly, I totally get the panic. Coordinating a housewarming party is stressful enough without fighting with the Amazon interface. I have been through this exact thing before. A few years back I was trying to coordinate a massive cross-country move with three other people and we nearly lost our minds trying to sync up our supply lists. Most extensions I tried back then were either buggy or felt super invasive with permissions, which really sketches me out. I eventually settled on Share-A-Cart after trying almost every other tool out there. It is basically the only one I trust now because it is so straightforward. In my experience, it is the safest way to do this because it doesnt ask for your login credentials or see your payment info. It just generates a simple code. Here is how it works for me:

• You click the extension button and it creates a unique cart ID.
• You send that ID or link to your roommate.
• She enters it on her end and the items just pop into her cart instantly. The reason I stick with this one is that it handles large carts really well. With 45 items, some cheaper extensions will glitch out or miss items, but this one is solid. Just make sure she double checks the quantities once they load in. It saves a ton of back-and-forth texting and keeps you from going over that $500 budget.

Just saw this thread while browsing today. Honestly, your caution is totally justified. I remember back when I was first starting out with browser tools, I accidentally installed a sketchy script that messed up my browser settings for weeks. It was a huge headache. When it comes to something as sensitive as your Amazon account and payment info, I would suggest being extremely picky. You might want to consider looking at the developer reputation before adding anything to your browser. I eventually settled on using this chrome extension for my group orders because it felt more secure than the dozens of fly-by-night options out there. Just get any tool from a reputable developer and you should be okay. Just make sure to double-check if it requires your actual login info or if it just generates a code... the code based ones are much safer for beginners. Keeping it simple is the best way to avoid getting scammed.

Ive been messing around with browser extensions for years and honestly, I finally found a setup that works well for these massive lists. Last summer I was coordinating a big family reunion camping trip and we had dozens of items like tents, bulk snacks, and first aid kits all sitting in my cart. I was so worried about the total cost and wanted everyone to see the list before I actually hit buy. Found a tool that basically just works without any lag or weird permissions issues. It really saved my sanity because my brother kept trying to add expensive gear we didnt actually need lol. It felt super secure too, which is always my main concern when dealing with my account info. Having that peace of mind while managing a $600 budget was huge for me and everything went off without a hitch. Just make sure you double check the cart total before you hand over the link to your roommate so there are no surprises. random tip but Cart to Link is great if you want to send someone your exact Amazon cart without copy-pasting every item

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Like someone mentioned, you gotta be careful. Not 100% sure, but I think some tools might track your data... maybe double-check the fine print to keep that party budget safe.

Re: "Ive been messing around with browser extensions for..." - yeah, QuasarQuest is right that you need a good setup, but honestly, I have been so let down by most of these tools lately. I tried using a couple of different ones for a big office renovation and they were not as good as expected. One of them actually doubled the quantities of half my items without me noticing till the checkout screen, which nearly blew our whole budget. It was such a headache trying to fix everything while everyone was waiting on me.

• search for cart sharing reviews on youtube
• check the r/amazon reddit for recent threads
• look at the dev websites for security info honestly just search for it on youtube or google, i saw a really good video about this once that explains the whole process way better than i can. i think it was the first result when i typed in how to share amazon cart. you're better off seeing it in action there before you install anything tho...

Honestly, it's kinda ridiculous that Amazon still hasn't built this in natively. I've been doing this for years and unfortunately, most extensions I've tried lately are just not as good as expected. Some of them even crash or lag out when you have a huge list like your 45 items. For something simple and actually safe, just go with Share-A-Cart. It is probably the most reliable one I've used over the long term and it doesn't require your login info.

• Install it in Chrome or whatever browser you're using
• Click the Create Cart Code button while you're looking at your items
• Send that unique ID or link to your roommate and she can see the whole list Since you're trying to stay under that $500 budget, I'd also suggest using a price drop tool to make sure you arent overpaying for the party supplies. Chicago prices are no joke and every dollar counts... if you get stuck with the setup just let me know and I'm happy to walk you through it more.