Unknown Words While Reading

I've had this problem for a long time now, ever since I've started reading actually. How to handle words in the text that I don't know. I've tried different things:

Looking them up immediately
Making a list for each chapter and looking them up afterwards
Ignoring them and just flag the page to go back to later

The trouble is I don't like looking up words while I'm reading because it's a hassle and I'm lazy like that. I can get myself to make a list while I read but then I'm looking up the words out of context. Ignoring them and thinking I'm going to get back to them later never works. So what to do?

Overall, probably the best solution is to look them up as I read but that's not always convenient because sometimes I'm reading outside, or in bed or sitting in some room someplace or riding in a car...it's just not convenient to lug around a dictionary. I guess an iPhone would be good for this, then I could access ninjawords or something (btw, ninjawords isn't as comprehensive as dictionary.com or others so far. Unfortunately, dictionary.com has a 100% success rate for me while the other online dictionaries I've tried at best get 99% from me...gah).

I have a HUGE dictionary here on my desk. HUGE. I've had it for a while now and while it's not completely up to date with the latest words like I dunno, blog, woot and ZOMG! it's overall fairly comprehensive. I've been making tick marks next to words I've looked up over the years so when I end up looking them up again I know I should be familiar with it. That's why I dig ninjawords history list so much. In a more perfect world dictionary.com would have a history list.

So I'm open for ideas. I'm thinking the best solution (until I get an iPhone or something) is to look up words right then and there or if I can't for some reason, jot down the word on the bookmark I'm using in the book and look them up later. What words don't I know you say? Here's a small selection from my current list:

Splenetic
Encyclicals
Monitories
Scabious
Missal
Lees
Santonin
Nasturtium
Antiphony
Dalmatic
Faille
Samovar