Upvote:0
You can use Poste Restante in Sweden.
PostNord (the nordics joint-venture postal organization) has an info page about this. Find the best Poste Restante post office and just send the message there with your name on it.
I've used it a few times and it's almost always working.
Upvote:6
You can send a package to Abisko as long as you notify them well in advance. You will have to pick it up at Godisfabriken Supermarket in Abisko Östra, a bit east of the tourist centre. From STF Abisko page:
Ja, du kan skicka både brev och paket hit mot en mindre avgift men du måste, i god tid innan, kontakta receptionen. Brev kan hämtas ut i receptionen medans paket hämtas på Godisfabriken Supermarket i Abisko Östra.
Which means:
Yes, you can send both letters or parcels here for a small fee, but you must contact the reception well in advance. Letters can be picked up at the reception whereas parcels are picked up at Godisfabriken Supermarket in Abisko Östra.
Note that there's also plenty of processed outdoor food for sale in Abisko (much cheaper than Norway), as it's a major hiking centre where many people start Kungsleden hikes. If you do your hike before mid-September, expect it to be very busy (~200 people per day).
Some unrequested advice:
Between Baugevatnet and Sijdasjávrre, near Narvik, Norway, ~68.1°N, 1 October 2012. Probably less than 50 hikers per year pass here, we saw nobody for the 4 days from Hellemobotn to Skjomen.