My biggest TIP, the day is not as important as the marriage. Enjoy your day, even on a budget, just enjoy your company, your family, your friends, your new husband.
Homemake everything!
I wanted the hall of my dreams and so I worked really hard to make things on my own. Lots of 'crafts' as my wedding! We made grape jelly from the Concord grapes in our yard, and canned it all at home. It was a TON of work. I made all my own labels, seating charts, invitations, even most of the centerpiece was homemade. Flowers are HUGELY expensive. Try going for fake/silk flowers, or not doing flowers for your centerpieces. I only had 2 $3/sprigs of hydrangeas in my centerpieces. They are huge, so I got a big bang for my buck with those. (they can paint them any color you want too!) I spray painted wine bottles with chalkboard spray paint and we wrote the table names on the wine bottles, with the hydrangeas, they made awesome centerpieces. I used the jars of jelly as the seating chart, everyone's name was on a jar with their table name. Invitations, I saved a ton of money. Those can easily run $400. Mine cost about $75 and some work. I designed them, a friend of mine had a cricket machine for scrapbooking, her & I cut them all, printed the info on vellum, mounted them in the invite (mounted the RSVP on the other side), tied them closed with matching ribbon around them, they were beautiful!
Also, when we were looking for cake, I wanted cupcakes and we found a cupcake shop that JUST opened. We took a huge leap of faith, but it saved us $500 and they did a GREAT job! They were so grateful to have a wedding to do and the trust when they just opened. Everywhere else was charging $500+ for the cupcakes and $100-$200 for stand rental. This place charged me $220 for everything! It was awesome and almost 2 years later, people are still talking about the cupcakes at our wedding!
We rented a room at the place we got married at for 2 nights, so there was no limo charges and that was luckily gifted to us. Uuumm If I think of anything more I will let you know! Basically I think a lot of crafty, hard work can literally save you $1k or more in little things that add up. Oh last thing, reach out to everyone ... you never know who knows a cake person, a DJ, a photographer, etc... they do it on the side, they are excellent and a fraction of the cost of a company who specializes in it. We got an amazing DJ for $700 for 9 hours, he was 'da bomb! A company would have cost us $2500 up here (which is ridiculous!)
On that note.... CONGRATULATIONS!!!