Andy's advice is good. Polish things up. Also, see if you can carry some real
tire lube with you. It's like a gel. (auto parts store should sell it) it's better than soap.

Also ... make certain your tube is not folded or twisted in the tire ... this can prevent bead seating. Also ... if tire bead is damaged or BENT ... bead may not want to seat.

A good fresh tube is good to have when ramping up to 90 PSI. Highest I've gone is 80 psi ... I did explode a tube one time. Going over 50 PSI is common.
You'll need some good bead breaking tools for travel. If you think getting the bead to seat is tough ... wait till you try to break that bead when your tire is flat and you're in the middle of nowhere.

Remember ... if bead won't seat you can still ride the bike. You'll get a hop or judder, ignore it. Also, it's very tough to get 50 PSI from a hand pump, elec. compressor or CO-2 cartridges. Sometimes, riding the bike ... the bead will get hot and seat. If not, ride until you get somewhere with a good compressor.

But bead breaking on a flat is BY FAR the more PITA problem. I've run into certain tires that are really really impossible. Lots of solutions. Mine is a BIG C clamp which I hate carrying but it works. Never ignore a Car tire shop ... they will often help and can break that bead in seconds. Other shops won't help. Always worth a try however. I once rode flat to a shop and had the thing fixed in ten minutes.